## Scilab functions

  abcd - state-space matrices
  abinv - AB invariant subspace
  abort - interrupt evaluation.
  abs - absolute value, magnitude
  acoshm - matrix hyperbolic inverse cosine
  acosh - hyperbolic cosine inverse
  acosm - matrix wise cosine inverse
  acos - element wise cosine inverse
  addcolor - add new colors to the current colormap
  addf - symbolic addition
  addinter - new functions interface incremental linking at run time
  addmenu - interactive button or menu definition
  add_demo - Add an entry in the demos list
  add_edge - adds an edge or an arc between two nodes
  add_help_chapter - Add an entry in the helps list
  add_node - adds a disconnected node to a graph
  add_palette - Add an entry in the Scicos palettes list
  adj2sp - converts adjacency form into sparse matrix.
  adj_lists - computes adjacency lists
  aff2ab - linear (affine) function to A,b conversion
  agregation_properties - description of the Agregation entity properties
  alufunctions - pixel drawing functions
  amell - Jacobi's am function
  analpf - create analog low-pass filter
  analyze - frequency plot of a sound signal
  and - (&) logical and
  ans - answer
  apropos - searches keywords in Scilab help
  arc_graph - graph with nodes corresponding to arcs
  arc_number - number of arcs of a graph
  arc_properties - description of the Arc entity properties
  argn - number of arguments in a function call
  arhnk - Hankel norm approximant
  arl2 - SISO model realization by L2 transfer approximation
  arma2p - extract polynomial matrices from ar representation
  armac - Scilab description of an armax process
  armax1 - armax identification
  armax - armax identification
  arma - Scilab arma library
  arsimul - armax simulation
  artest - arnold dynamical system
  articul - finds one or more articulation points
  asciimat - string matrix to ASCII conversion
  ascii - string ascii conversions
  asinhm - matrix hyperbolic inverse sine
  asinh - hyperbolic sine inverse
  asinm - matrix wise sine inverse
  asin - sine inverse
  assignation - partial variable assignation
  atanhm - matrix hyperbolic tangent inverse
  atanh - hyperbolic tangent inverse
  atanm - square matrix tangent inverse
  atan - 2-quadrant and 4-quadrant inverse tangent
  augment - augmented plant
  auread - load .au sound file
  auwrite - writes .au sound file
  axes_properties - description of the axes entity properties
  axis_properties - description of the axis entity properties
  backslash - (\) left matrix division.
  balanc - matrix or pencil balancing
  balreal - balanced realization
  bandwr - bandwidth reduction for a sparse matrix
  basename - strip directory and suffix from filenames
  bdiag - block diagonalization, generalized eigenvectors
  besseli - Modified Bessel functions of the first kind (I sub alpha).
  besselj - Bessel functions of the first kind (J sub alpha).
  besselk - Modified Bessel functions of the second kind (K sub alpha).
  bessely - Bessel functions of the second kind (Y sub alpha).
  best_match - best matching of a graph
  beta - beta function
  bezout - Bezout equation for polynomials or integers
  bifish - shows a bifurcation diagram in a fish population discrete time model
  bilin - general bilinear transform
  binomial - binomial distribution probabilities
  black - Black's diagram (Nichols chart)
  bloc2exp - block-diagram to symbolic expression
  bloc2ss - block-diagram to state-space conversion
  bode - Bode plot
  bool2s - convert boolean matrix to a zero one matrix.
  boolean - Scilab Objects, boolean variables and operators & | ~
  boucle - phase portrait of a dynamical system with observer
  brackets - ([,]) left and right brackets
  break - keyword to interrupt loops
  browsevar - Scilab variable browser
  bsplin3val - 3d spline arbitrary derivative evaluation function
  bstap - hankel approximant
  buttmag - response of Butterworth filter
  buttondialog - Create a simple button dialog
  bvode - boundary value problems for ODE
  cainv - Dual of abinv
  calerf - computes error functions.
  calfrq - frequency response discretization
  call - Fortran or C user routines call
  canon - canonical controllable form
  casc - cascade realization of filter from coefficients
  case - keyword used in select
  ccontrg - central H-infinity controller
  cdfbet - cumulative distribution function Beta distribution
  cdfbin - cumulative distribution function Binomial distribution
  cdfchi - cumulative distribution function chi-square distribution
  cdfchn - cumulative distribution function non-central chi-square distribution
  cdffnc - cumulative distribution function non-central f-distribution
  cdff - cumulative distribution function F distribution
  cdfgam - cumulative distribution function gamma distribution
  cdfnbn - cumulative distribution function negative binomial distribution
  cdfnor - cumulative distribution function normal distribution
  cdfpoi - cumulative distribution function poisson distribution
  cdft - cumulative distribution function Student's T distribution
  cd - changes Scilab current directory
  ceil - rounding up
  center - center
  cepstrum - cepstrum calculation
  chaintest - a three-species food chain model
  chain_struct - chained structure from adjacency lists of a graph
  champ1 - 2D vector field plot with colored arrows
  champ_properties - description of the 2D vector field entity properties
  champ - 2D vector field plot
  chart - Nichols chart
  chdir - changes Scilab current directory
  cheb1mag - response of Chebyshev type 1 filter
  cheb2mag - response of type 2 Chebyshev filter
  check_graph - checks a Scilab graph list
  chepol - Chebychev polynomial
  chfact - sparse Cholesky factorization
  chol - Cholesky factorization
  chsolve - sparse Cholesky solver
  circuit - finds a circuit or the rank function in a directed graph
  classmarkov - recurrent and transient classes of Markov matrix
  clc - Clear Command Window
  clean - cleans matrices (round to zero small entries)
  clearfun - remove primitive.
  clearglobal - kills global variables
  clear_pixmap - erase the pixmap buffer
  clear - kills variables
  clf - clear or reset the current graphic figure (window) to default values
  close - close a figure
  cls2dls - bilinear transform
  cmb_lin - symbolic linear combination
  cmndred - common denominator form
  cmoment - central moments of all orders
  code2str - returns character string associated with Scilab integer codes.
  coeff - coefficients of matrix polynomial
  coffg - inverse of polynomial matrix
  coff - resolvent (cofactor method)
  colcompr - column compression of polynomial matrix
  colcomp - column compression, kernel, nullspace
  colinout - inner-outer factorization
  colon - (:) colon operator
  colorbar - draw a colorbar
  colormap - using colormaps
  color_list - list of named colors
  color - returns the color id of a color
  colregul - removing poles and zeros at infinity
  comma - (,) column, instruction, argument separator
  comments - comments
  companion - companion matrix
  comp - scilab function compilation
  cond - condition number
  config - Scilab general configuration.
  conj - conjugate
  connex - connected components
  continue - keyword to pass control to the next iteration of a loop
  contour2di - compute level curves of a surface on a 2D plot
  contour2d - level curves of a surface on a 2D plot
  contourf - filled level curves of a surface on a 2D plot
  contour - level curves on a 3D surface
  contract_edge - contracts edges between two nodes
  contrss - controllable part
  contr - controllability, controllable subspace, staircase
  cont_frm - transfer to controllable state-space
  cont_mat - controllability matrix
  convex_hull - convex hull of a set of points in the plane
  convol - convolution
  convstr - case conversion
  con_nodes - set of nodes of a connected component
  copfac - right coprime factorization
  copy - copy a graphics entity.
  correl - correlation of two variables
  corr - correlation, covariance
  coshm - matrix hyperbolic cosine
  cosh - hyperbolic cosine
  cosm - matrix cosine function
  cos - cosine function
  cotg - cotangent
  cothm - matrix hyperbolic cotangent
  coth - hyperbolic cotangent
  covar - covariance of two variables
  cshep2d - bidimensional cubic shepard (scattered) interpolation
  csim - simulation (time response) of linear system
  cspect - spectral estimation (correlation method)
  ctr_gram - controllability gramian
  cumprod - cumulative product
  cumsum - cumulative sum
  cycle_basis - basis of cycle of a simple undirected graph
  czt - chirp z-transform algorithm
  c_link - check dynamic link
  dasrt - DAE solver with zero crossing
  dassl - differential algebraic equation
  datafit - Parameter identification based on measured data
  date - Current date as date string
  dbphi - frequency response to phase and magnitude representation
  dcf - double coprime factorization
  ddp - disturbance decoupling
  debug - debugging level
  dec2hex - hexadecimal representation of integers
  deff - on-line definition of function
  definedfields - return index of list's defined fields
  degree - degree of polynomial matrix
  delbpt - delete breakpoint
  delete_arcs - deletes all the arcs or edges between a set of nodes
  delete_nodes - deletes nodes
  delete - delete a graphic entity and its children.
  delip - elliptic integral
  delmenu - interactive button or menu deletion
  demoplay - interactive demo player.
  denom - denominator
  derivative - approximate derivatives of a function
  derivat - rational matrix derivative
  des2ss - descriptor to state-space
  des2tf - descriptor to transfer function conversion
  determ - determinant of polynomial matrix
  detr - polynomial determinant
  det - determinant
  dft - discrete Fourier transform
  dhinf - H_infinity design of discrete-time systems
  dhnorm - discrete H-infinity norm
  diag - diagonal including or extracting
  diary - diary of session
  diff - Difference and discrete derivative
  diophant - diophantine (Bezout) equation
  dirname - get directory from filenames
  dir - get file list
  dispbpt - display breakpoints
  dispfiles - display opened files properties
  disp - displays variables
  dlgamma - derivative of gammaln function, psi function
  dot - (.) symbol
  double - conversion from integer to double precision representation
  dragrect - Drag rectangle(s) with mouse
  drawaxis - draw an axis
  drawlater - makes axes children invisible.
  drawnow - draw hidden graphics entities.
  draw - draw an entity.
  driver - select a graphics driver
  dscr - discretization of linear system
  dsearch - binary search (aka dichotomous search in french)
  dsimul - state space discrete time simulation
  dtsi - stable anti-stable decomposition
  dt_ility - detectability test
  edge_number - number of edges of a graph
  editvar - Scilab variable editor
  edit_curv - interactive graphic curve editor
  edit_graph_menus - edit_graph menus description
  edit_graph - graph and network graphical editor
  edit - function editing
  eigenmarkov - normalized left and right Markov eigenvectors
  ell1mag - magnitude of elliptic filter
  elseif - keyword in if-then-else
  else - keyword in if-then-else
  emptystr - zero length string
  empty - ([]) empty matrix
  endfunction - closes a function definition
  end - end keyword
  eqfir - minimax approximation of FIR filter
  eqiir - Design of iir filters
  equal - (=) affectation, comparison equal sign
  equil1 - balancing (nonnegative) pair of matrices
  equil - balancing of pair of symmetric matrices
  ereduc - computes matrix column echelon form by qz transformations
  erfcx - scaled complementary error function.
  erfc - The complementary error function.
  erf - The error function.
  errbar - add vertical error bars on a 2D plot
  errcatch - error trapping
  errclear - error clearing
  error - error messages
  etime - Elapsed time
  eval3dp - compute facets of a 3D parametric surface
  eval3d - values of a function on a grid
  eval_cshep2d - bidimensional cubic shepard interpolation evaluation
  eval - evaluation of a matrix of strings
  evans - Evans root locus
  evstr - evaluation of expressions
  excel2sci - reads ascii Excel files
  execstr - execute Scilab code in strings
  exec - script file execution
  exists - checks variable existence
  exit - Ends the current Scilab session
  expm - square matrix exponential
  exp - element-wise exponential
  external - Scilab Object, external function or routine
  extraction - matrix and list entry extraction
  eye - identity matrix
  fac3d - 3D plot of a surface (obsolete)
  factors - numeric real factorization
  faurre - filter computation by simple Faurre algorithm
  fchamp - direction field of a 2D first order ODE
  fcontour2d - level curves of a surface defined by a function on a 2D plot
  fcontour - level curves on a 3D surface defined by a function
  fec_properties - description of the fec entities properties
  fec - pseudo-color plot of a function defined on a triangular mesh
  feedback - feedback operation
  feval - multiple evaluation
  ffilt - coefficients of FIR low-pass
  fftshift - rearranges the fft output, moving the zero frequency to the center of the spectrum
  fft - fast Fourier transform.
  fgrayplot - 2D plot of a surface defined by a function using colors
  figure_properties - description of the graphics figure entity properties
  figure - create a figure
  fileinfo - Provides information about a file
  fileparts - returns the path, filename and extension for a file path
  file - file management
  filter - modelling filter
  findm - for elliptic filter design
  findobj - find an object with specified property
  findx0BD - Estimates state and B and D matrices of a discrete-time linear system
  find_freq - parameter compatibility for elliptic filter design
  find_path - finds a path between two nodes
  find - find indices of boolean vector or matrix true elements
  findABCD - discrete-time system subspace identification
  findAC - discrete-time system subspace identification
  findBD - initial state and system matrices B and D of a discrete-time system
  findBDK - Kalman gain and B D system matrices of a discrete-time system
  findR - Preprocessor for estimating the matrices of a linear time-invariant dynamical system
  firstnonsingleton - Finds first dimension which is not 1
  fit_dat - Parameter identification based on measured data
  fix - rounding towards zero
  floor - rounding down
  flts - time response (discrete time, sampled system)
  foo - foo short description
  formatman - translates old NROFF man files in a directory into ascii, tex, html or xml
  format - number printing and display format
  fort - Fortran or C user routines call
  for - language keyword for loops
  fourplan - augmented plant to four plants
  fplot2d - 2D plot of a curve defined by a function
  fplot3d1 - 3D gray or color level plot of a surface defined by a function
  fplot3d - 3D plot of a surface defined by a function
  fprintf - Emulator of C language fprintf function
  fprintfMat - print a matrix in a file.
  frep2tf - transfer function realization from frequency response
  freq - frequency response
  freson - peak frequencies
  frexp - dissect floating-point numbers into base 2 exponent and mantissa
  frfit - frequency response fit
  frmag - magnitude of FIR and IIR filters
  fscanf - Converts formatted input read on a file
  fscanfMat - Reads a Matrix from a text file.
  fsfirlin - design of FIR, linear phase filters, frequency sampling technique
  fsolve - find a zero of a system of n nonlinear functions
  fspecg - stable factorization
  fstabst - Youla's parametrization
  fstair - computes pencil column echelon form by qz transformations
  ftest - Fischer ratio
  ftuneq - Fischer ratio for samples of unequal size.
  fullrfk - full rank factorization of A^k
  fullrf - full rank factorization
  full - sparse to full matrix conversion
  fun2string - generates ascii definition of a scilab function
  funcprot - switch scilab functions protection mode
  functions - Scilab procedures and Scilab objects
  function - opens a function definition
  funptr - coding of primitives ( wizard stuff )
  fusee - a set of Scilab macro for a landing rocket problem
  gainplot - magnitude plot
  gamitg - H-infinity gamma iterations
  gammaln - The logarithm of gamma function.
  gamma - The gamma function.
  gcare - control Riccati equation
  gca - Return handle of current axes.
  gcd - gcd calculation
  gce - Get current entity handle.
  gcf - Return handle of current graphic or GUI window.
  gda - Return handle of default axes.
  gdf - Return handle of default figure.
  genfac3d - compute facets of a 3D surface
  genlib - build library from all functions in given directory
  genmarkov - generates random markov matrix with recurrent and transient classes
  gen_net - interactive or random generation of a network
  geom3d - projection from 3D on 2D after a 3D plot
  geomean - geometric mean
  getcolor - opens a dialog to show colors in the current colormap
  getcwd - get Scilab current directory
  getdate - get date and time information
  getd - getting all functions defined in a directory
  getenv - get the value of an environment variable
  getfield - list field extraction
  getfont - dialog to select font
  getf - defining a function from a file
  getio - get Scilab input/output logical units
  getlinestyle - dialog to select linestyle
  getmark - dialog to select mark (symbol)
  getpid - get Scilab process identificator
  getsymbol - dialog to select a symbol and its size
  getvalue - xwindow dialog for data acquisition
  getversion - get Scilab version name
  get_function_path - get source file path of a library function
  get - Retrieve a property value from a graphics entity or an User Interface object.
  gfare - filter Riccati equation
  gfrancis - Francis equations for tracking
  girth - girth of a directed graph
  givens - Givens transformation
  glever - inverse of matrix pencil
  glist - graph list creation
  global - Define global variable
  glue - glue a set of graphics entities into an agregation.
  gpeche - a fishing program
  graduate - pretty axis graduations
  grand - Random number generator(s)
  graphics_entities - description of the graphics entities data structures
  graph_2_mat - node-arc or node-node incidence matrix of a graph
  graph_center - center of a graph
  graph_complement - complement of a graph
  graph_diameter - diameter of a graph
  graph_power - kth power of a directed 1-graph
  graph_simp - converts a graph to a simple undirected graph
  graph_sum - sum of two graphs
  graph_union - union of two graphs
  graph-list - description of graph list
  graycolormap - linear gray colormap
  grayplot_properties - description of the grayplot entities properties
  grayplot - 2D plot of a surface using colors
  graypolarplot - Polar 2D plot of a surface using colors
  grep - find matches of a string in a vector of strings
  group - group delay for digital filter
  gr_menu - simple interactive graphic editor
  gschur - generalized Schur form (obsolete).
  gsort - decreasing order sorting
  gspec - eigenvalues of matrix pencil (obsolete)
  gstacksize - set/get scilab global stack size
  gtild - tilde operation
  g_margin - gain margin
  h2norm - H2 norm
  halt - stop execution
  hamilton - hamiltonian circuit of a graph
  hankelsv - Hankel singular values
  hank - covariance to hankel matrix
  harmean - harmonic mean
  hat - (^) exponentiation
  havewindow - return scilab window mode
  head_comments - display scilab function header comments
  help_skeleton - build the skeleton of the xml help file associated to a Scilab function
  help - on-line help command
  hermit - Hermite form
  hess - Hessenberg form
  hex2dec - conversion from hexadecimal representation to integers
  hilb - Hilbert transform
  hinf - H_infinity design of continuous-time systems
  hist3d - 3D representation of a histogram
  histplot - plot a histogram
  horner - polynomial/rational evaluation
  host - Unix or DOS command execution
  hotcolormap - red to yellow colormap
  householder - Householder orthogonal reflexion matrix
  hrmt - gcd of polynomials
  htrianr - triangularization of polynomial matrix
  hypermatrices - Scilab object, N dimensional matrices in Scilab
  hypermat - initialize an N dimensional matrices
  h_cl - closed loop matrix
  h_inf_st - static H_infinity problem
  h_inf - H-infinity (central) controller
  h_norm - H-infinity norm
  iconvert - conversion to 1 or 4 byte integer representation
  ieee - set floating point exception mode
  if - conditional execution
  iirgroup - group delay Lp IIR filter optimization
  iirlp - Lp IIR filter optimization
  iir - iir digital filter
  ilib_build - utility for shared library management
  ilib_compile - ilib_build utility: executes the makefile produced by ilib_gen_Make
  ilib_for_link - utility for shared library management with link
  ilib_gen_gateway - utility for ilib_build, generates a gateway file.
  ilib_gen_loader - utility for ilib_build: generates a loader file
  ilib_gen_Make - utility for ilib_build: produces a makefile for building shared libraries
  imag - imaginary part
  impl - differential algebraic equation
  imrep2ss - state-space realization of an impulse response
  imult - multiplication by i the imaginary unitary
  im_inv - inverse image
  ind2sub - linear index to matrix subscript values
  inistate - Estimates the initial state of a discrete-time system
  input - prompt for user input
  insertion - partial variable assignation or modification
  int16 - conversion to 2 bytes integer representation
  int2d - definite 2D integral by quadrature and cubature method
  int32 - conversion to 4 bytes integer representation
  int3d - definite 3D integral by quadrature and cubature method
  int8 - conversion to one byte integer representation
  intc - Cauchy integral
  intdec - Changes sampling rate of a signal
  integrate - integration by quadrature
  interp2d - bicubic spline (2d) evaluation function
  interp3d - 3d spline evaluation function
  interpln - linear interpolation
  interp - cubic spline evaluation function
  intersci - scilab tool to interface C of Fortran functions with scilab
  intersect - returns the vector of common values of two vectors
  intg - definite integral
  intl - Cauchy integral
  intppty - set interface argument passing properties
  intsplin - integration of experimental data by spline interpolation
  inttrap - integration of experimental data by trapezoidal interpolation
  inttype - type integers used in integer data types
  int - integer part
  invr - inversion of (rational) matrix
  invsyslin - system inversion
  inv_coeff - build a polynomial matrix from its coefficients
  inv - matrix inverse
  iqr - interquartile range
  isdef - check variable existence
  isdir - checks if argument is a directory path
  isempty - check if a variable is an empty matrix or an empty list
  isequal - objects comparison
  iserror - error occurence test
  isglobal - check if a variable is global
  isinf - check for infinite entries
  isnan - check for "Not a Number" entries
  isoview - set scales for isometric plot (do not change the size of the window)
  isreal - check if a variable as real or complex entries
  is_connex - connectivity test
  jetcolormap - blue to red colormap
  jmat - row or column block permutation
  justify - Justify character array.
  kalm - Kalman update
  karmarkar - karmarkar algorithm
  kernel - kernel, nullspace
  keyboard - keyboard commands
  knapsack - solves a 0-1 multiple knapsack problem
  kpure - continuous SISO system limit feedback gain
  krac2 - continuous SISO system limit feedback gain
  kroneck - Kronecker form of matrix pencil
  kron - Kronecker product (.*.)
  label_properties - description of the Label entity properties
  labostat - Statistical toolbox for Scilab
  lasterror - get last recorded error message
  lattn - recursive solution of normal equations
  lattp - lattp
  lcf - normalized coprime factorization
  lcmdiag - least common multiple diagonal factorization
  lcm - least common multiple
  ldivf - left symbolic division
  ldiv - polynomial matrix long division
  leastsq - Solves non-linear least squaresproblems
  left - ([) left bracket
  legendre - associated Legendre functions
  legends - draw graph legend
  legend_properties - description of the Legend entity properties
  legend - draw graph legend
  length - length of object
  leqr - H-infinity LQ gain (full state)
  less - (<) lower than comparison
  levin - Toeplitz system solver by Levinson algorithm (multidimensional)
  lev - Yule-Walker equations (Levinson's algorithm)
  lex_sort - lexicographic matrix rows sorting
  lft - linear fractional transformation
  lgfft - utility for fft
  library - library datatype description
  lib - library definition
  lin2mu - linear signal to mu-law encoding
  lindquist - Lindquist's algorithm
  linear_interpn - n dimensional linear interpolation
  lines - rows and columns used for display
  line_graph - graph with nodes corresponding to edges
  linfn - infinity norm
  linf - infinity norm
  link - dynamic link
  linmeq - Sylvester and Lyapunov equations solver
  linpro - linear programming solver
  linsolve - linear equation solver
  linspace - linearly spaced vector
  lin - linearization
  listfiles - list files
  list - Scilab object and list function definition
  lmisolver - linear matrix inequation solver
  lmitool - tool for solving linear matrix inequations
  loadmatfile - loads a Matlab MAT-file into Scilab
  loadplots - loads and formats saved plots
  loadwave - load a sound <<wav>> file into scilab
  load_graph - loads a graph
  load - load saved variable
  locate - mouse selection of a set of points
  log10 - logarithm
  log1p - computes with accuracy the natural logarithm of its argument added by one
  log2 - base 2 logarithm
  logm - square matrix logarithm
  logspace - logarithmically spaced vector
  log - natural logarithm
  lotest - demo of the Lorenz attractor
  lqe - linear quadratic estimator (Kalman Filter)
  lqg2stan - LQG to standard problem
  lqg_ltr - LQG with loop transform recovery
  lqg - LQG compensator
  lqr - LQ compensator (full state)
  lsqrsolve - minimize the sum of the squares ofnonlinear functions, levenberg-marquardt algorithm
  lsq_splin - weighted least squares cubic spline fitting
  lsq - linear least square problems.
  lsslist - Scilab linear state space function definition
  lstcat - list concatenation
  lstsize - list, tlist, mlist numbers of entries
  ls - show files
  ltitr - discrete time response (state space)
  ludel - utility function used with lufact
  lufact - sparse lu factorization
  luget - extraction of sparse LU factors
  lusolve - sparse linear system solver
  lu - LU factors of Gaussian elimination
  lyap - Lyapunov equation
  m2scideclare - Giving tips to help M2SCI...
  macglov - Mac Farlane Glover problem
  macr2lst - function to list conversion
  macr2tree - function to tree conversion
  macrovar - variables of function
  macro - Scilab procedure and Scilab object
  mad - mean absolute deviation
  make_graph - makes a graph list
  make_index - creates a new index file for on-line help
  manedit - editing a manual item
  man - on line help XML file description format
  mapsound - Plots a sound map
  markp2ss - Markov parameters to state-space
  matfile2sci - converts a Matlab 5 MAT-file into a Scilab binary file
  matrices - Scilab object, matrices in Scilab
  matrix - reshape a vector or a matrix to a different size matrix
  mat_2_graph - graph from node-arc or node-node incidence matrix
  maxi - maximum
  max_cap_path - maximum capacity path
  max_clique - maximum clique of a graph
  max_flow - maximum flow between two nodes
  max - maximum
  mclearerr - reset binary file access errors
  mclose - close an opened file
  mdelete - Delete file(s)
  meanf - weighted mean of a vector or a matrix
  mean - mean (row mean, column mean) of vector/matrix entries
  median - median (row median, column median) of vector/matrix entries
  meof - check if end of file has been reached
  merror - tests the file access errors indicator
  mese - maximum entropy spectral estimation
  mesh2d - triangulation of n points in the plane
  mfft - multi-dimensional fft
  mfile2sci - Matlab M-file to Scilab conversion function
  mfprintf - converts, formats, and writes data to a file
  mfscanf - interface to the C fscanf function
  mgeti - reads byte or word in a given binary format return an int type
  mgetl - read lines from an ascii file
  mgetstr - read a character string
  mget - reads byte or word in a given binary format and convert to double
  milk_drop - milk drop 3D function
  mine - a mining problem
  mini - minimum
  minreal - minimal balanced realization
  minss - minimal realization
  minus - (-) substraction operator, sign changes
  min_lcost_cflow - minimum linear cost constrained flow
  min_lcost_flow1 - minimum linear cost flow
  min_lcost_flow2 - minimum linear cost flow
  min_qcost_flow - minimum quadratic cost flow
  min_weight_tree - minimum weight spanning tree
  min - minimum
  mlist - Scilab object, matrix oriented typed list definition.
  mode - select a mode in exec file
  modulo - symetric arithmetic remainder modulo m
  moment - non central moments of all orders
  mopen - open a file
  move - move, translate, a graphic entity and its children.
  mprintf - converts, formats, and writes data to the main scilab window
  mps2linpro - convert lp problem given in MPS format to linpro format
  mputl - writes strings in an ascii file
  mputstr - write a character string in a file
  mput - writes byte or word in a given binary format
  mrfit - frequency response fit
  mscanf - interface to the C scanf function
  msd - mean squared deviation
  mseek - set current position in binary file.
  msprintf - converts, formats, and writes data in a string
  msscanf - interface to the C sscanf function
  mstr2sci - character string matrix to character matrix conversion
  mtell - binary file management
  mtlb_0 - Matlab non-conjugate transposition emulation function
  mtlb_all - Matlab all emulation function
  mtlb_any - Matlab any emulation function
  mtlb_a - Matlab addition emulation function
  mtlb_beta - Matlab beta emulation function
  mtlb_box - Matlab box emulation function
  mtlb_close - Matlab close emulation function
  mtlb_colordef - Matlab colordef emulation function
  mtlb_conv - Matlab conv emulation function
  mtlb_cumprod - Matlab cumprod emulation function
  mtlb_cumsum - Matlab cumsum emulation function
  mtlb_dec2hex - Matlab dec2hex emulation function
  mtlb_delete - Matlab delete emulation function
  mtlb_diag - Matlab diag emulation function
  mtlb_diff - Matlab diff emulation function
  mtlb_dir - Matlab dir emulation function
  mtlb_double - Matlab double emulation function
  mtlb_eig - Matlab eig emulation function
  mtlb_eval - Matlab eval emulation function
  mtlb_exist - Matlab exist emulation function
  mtlb_eye - Matlab eye emulation function
  mtlb_e - Matlab extraction emulation function
  mtlb_false - Matlab false emulation function
  mtlb_fft - Matlab fft emulation function
  mtlb_find - Matlab find emulation function
  mtlb_full - Matlab full emulation function
  mtlb_hold - Matlab hold emulation function
  mtlb_imp - Matlab colon emulation function
  mtlb_int16 - Matlab int16 emulation function
  mtlb_int32 - Matlab int32 emulation function
  mtlb_int8 - Matlab int8 emulation function
  mtlb_isa - Matlab isa emulation function
  mtlb_isspace - Matlab isspace emulation function
  mtlb_is - Matlab string insertion emulation function
  mtlb_i - Matlab insertion emulation function
  mtlb_load - load variables from file with Matlab4 format.
  mtlb_logical - Matlab logical emulation function
  mtlb_logic - Matlab logical operators emulation function
  mtlb_lower - Matlab lower emulation function
  mtlb_l - Matlab left division emulation function
  mtlb_max - Matlab max emulation function
  mtlb_min - Matlab min emulation function
  mtlb_mode - switch Matlab like operations
  mtlb_more - Matlab more emulation function
  mtlb_norm - Matlab norm emulation function
  mtlb_num2str - Matlab num2str emulation function
  mtlb_ones - Matlab ones emulation function
  mtlb_plot - Matlab plot emulation function
  mtlb_prod - Matlab prod emulation function
  mtlb_randn - Matlab randn emulation function
  mtlb_rand - Matlab rand emulation function
  mtlb_rcond - Matlab rcond emulation function
  mtlb_save - save variables on file with matlab4 format.
  mtlb_setstr - Matlab setstr emulation function
  mtlb_size - Matlab size emulation function
  mtlb_sparse - convert sparse matrix
  mtlb_strcmpi - Matlab strcmpi emulation function
  mtlb_strcmp - Matlab strcmp emulation function
  mtlb_strfind - Matlab strfind emulation function
  mtlb_strrep - Matlab strrep emulation function
  mtlb_sum - Matlab sum emulation function
  mtlb_s - Matlab substraction emulation function
  mtlb_toeplitz - Matlab toeplitz emulation function
  mtlb_tril - Matlab tril emulation function
  mtlb_triu - Matlab triu emulation function
  mtlb_true - Matlab true emulation function
  mtlb_t - Matlab transposition emulation function
  mtlb_uint16 - Matlab uint16 emulation function
  mtlb_uint32 - Matlab uint32 emulation function
  mtlb_uint8 - Matlab uint8 emulation function
  mtlb_upper - Matlab upper emulation function
  mtlb_zeros - Matlab zeros emulation function
  mu2lin - mu-law encoding to linear signal
  mucomp - mu (structured singular value) calculation
  mulf - symbolic multiplication
  mvvacov - computes variance-covariance matrix
  m_circle - M-circle plot
  name2rgb - returns the RGB values of a named color
  names - scilab names syntax
  nancumsum - Thos function returns the cumulative sum of the values of a matrix
  nand2mean - difference of the means of two independent samples
  nanmax - max (ignoring Nan's)
  nanmeanf - mean (ignoring Nan's) with a given frequency.
  nanmean - mean (ignoring Nan's)
  nanmedian - median of the values of a numerical vector or matrix
  nanmin - min (ignoring Nan's)
  nanstdev - standard deviation (ignoring the NANs).
  nansum - Sum of values ignoring NAN's
  narsimul - armax simulation ( using rtitr)
  ndgrid - arrays for multidimensional function evaluation on grid
  ndims - number of dimensions of an array
  nearfloat - get previous or next floating-point number
  nehari - Nehari approximant
  neighbors - nodes connected to a node
  netclose - closes an edit_graph window
  netwindows - gets the numbers of edit_graph windows
  netwindow - selects the current edit_graph window
  newest - returns newest file of a set of files
  newfun - add a name in the table of functions
  nextpow2 - next higher power of 2.
  nf3d - rectangular facets to plot3d parameters
  nfreq - frequence of the values in a vector or matrix
  nlev - Leverrier's algorithm
  nnz - number of non zero entries in a matrix
  nodes_2_path - path from a set of nodes
  nodes_degrees - degrees of the nodes of a graph
  node_number - number of nodes of a graph
  noisegen - noise generation
  norm - matrix norms
  not - (~) logical not
  null - delete an element in a list
  number_properties - determine floating-point parameters
  numdiff - numerical gradient estimation
  numer - numerator
  nyquist - nyquist plot
  obscont1 - a controlled-observed system
  obscont - observer based controller
  observer - observer design
  obsvss - observable part
  obsv_mat - observability matrix
  obs_gram - observability gramian
  odedc - discrete/continuous ode solver
  odedi - test of ode
  odeoptions - set options for ode solvers
  ode_discrete - ordinary differential equation solver, discrete time simulation
  ode_root - ordinary differential equation solver with root finding
  ode - ordinary differential equation solver
  oldload - load saved variable in 2.4.1 and previous formats
  oldsave - saving variables in 2.4.1 and previous format
  ones - matrix made of ones
  optim - non-linear optimization routine
  orth - orthogonal basis
  or - (|) logical or
  overloading - display, functions and operators overloading capabilities
  param3d1 - 3D plot of parametric curves
  param3d_properties - description of the 3D curves entities properties
  param3d - 3D plot of a parametric curve
  paramfplot2d - animated 2D plot, curve defined by a function
  parents - ( ) left and right parenthesis
  parrot - Parrot's problem
  part - extraction of strings
  pathconvert - pathnames convertion between posix and windows.
  path_2_nodes - set of nodes from a path
  pause - pause mode, invoke keyboard
  pbig - eigen-projection
  pca - Principal components analysis
  pdiv - polynomial division
  pen2ea - pencil to E,A conversion
  pencan - canonical form of matrix pencil
  penlaur - Laurent coefficients of matrix pencil
  percent - (%) special character
  perctl - computation of percentils
  perfect_match - min-cost perfect matching
  pertrans - pertranspose
  pfss - partial fraction decomposition
  phasemag - phase and magnitude computation
  phc - Markovian representation
  pinv - pseudoinverse
  pipe_network - solves the pipe network problem
  playsnd - sound player facility
  plot2d1 - 2D plot (logarithmic axes) (obsolete)
  plot2d2 - 2D plot (step function)
  plot2d3 - 2D plot (vertical bars)
  plot2d4 - 2D plot (arrows style)
  plot2d_old_version - 2D plot reference
  plot2d - 2D plot
  plot3d1 - 3D gray or color level plot of a surface
  plot3d2 - plot surface defined by rectangular facets
  plot3d3 - mesh plot surface defined by rectangular facets
  plot3d_old_version - 3D plot of a surface
  plot3d - 3D plot of a surface
  plotframe - plot a frame with scaling and grids
  plotprofile - extracts and displays execution profiles of a Scilab function
  plot_graph - general plot of a graph
  plot - simple plot
  plus - (+) addition operator
  plzr - pole-zero plot
  pmodulo - positive arithmetic remainder modulo m
  pol2des - polynomial matrix to descriptor form
  pol2str - polynomial to string conversion
  pol2tex - convert polynomial to TeX format
  polarplot - Plot polar coordinates
  polar - polar form
  polfact - minimal factors
  polyline_properties - description of the Polyline entity properties
  poly - polynomial definition
  portr3d - 3 dimensional phase portrait.
  portrait - 2 dimensional phase portrait.
  power - power operation (^,.^)
  ppol - pole placement
  prbs_a - pseudo random binary sequences generation
  predecessors - tail nodes of incoming arcs of a node
  predef - variable protection
  printf_conversion - printf, sprintf, fprintf conversion specifications
  printf - Emulator of C language printf function
  printing - printing scilab graphics
  print - prints variables in a file
  prod - product
  profile - extract execution profiles of a Scilab function
  progressionbar - Draw a progression bar
  projsl - linear system projection
  projspec - spectral operators
  proj - projection
  psmall - spectral projection
  pspect - cross-spectral estimate between 2 series
  pvmd3 - PVM daemon
  pvm_addhosts - add hosts to the virtual machine.
  pvm_barrier - blocks the calling process until all processes in a group have called it.
  pvm_bcast - broacasts a message to all members of a group
  pvm_bufinfo - Returns information about a message buffer.
  pvm_config - sends a message
  pvm_delhosts - deletes hosts from the virtual machine.
  pvm_error - Prints message describing an error returned by a PVM call
  pvm_exit - tells the local pvmd that this process is leaving PVM.
  pvm_f772sci - Convert a F77 complex into a complex scalar
  pvm_getinst - returns the instance number in a group of a PVM process.
  pvm_gettid - returns the tid of the process identified by a group name and instance number
  pvm_get_timer - Gets the system's notion of the current time.
  pvm_gsize - returns the number of members presently in the named group.
  pvm_halt - stops the PVM daemon
  pvm_joingroup - enrolls the calling process in a named group.
  pvm_kill - Terminates a specified PVM process.
  pvm_lvgroup - Unenrolls the calling process from a named group.
  pvm_mytid - returns the tid of the calling process.
  pvm_parent - tid of the process that spawned the calling process.
  pvm_probe - Check if message has arrived.
  pvm_recv - receive a message.
  pvm_reduce - Performs a reduce operation over members of the specified group
  pvm_sci2f77 - Convert complex scalar into F77
  pvm_send - immediately sends (or multicast) data.
  pvm_set_timer - Sets the system's notion of the current time.
  pvm_spawn_independent - Starts new PVM processes.
  pvm_spawn - Starts new Scilab processes.
  pvm_start - Start the PVM daemon
  pvm_tasks - information about the tasks running on the virtual machine.
  pvm_tidtohost - returns the host of the specified PVM process.
  pvm - communications with other applications using Parallel Virutal Machine
  pwd - print Scilab current directory
  p_margin - phase margin
  qassign - solves a quadratic assignment problem
  qr - QR decomposition
  quapro - linear quadratic programming solver
  quart - computation of quartiles
  quaskro - quasi-Kronecker form
  quit - decrease the pause level or exit
  quote - (') transpose operator, string delimiter
  randpencil - random pencil
  rand - random number generator
  range - range (span) of A^k
  rankqr - rank revealing QR factorization
  rank - rank
  rational - Scilab objects, rational in Scilab
  rat - Floating point rational approximation
  rcond - inverse condition number
  rdivf - right symbolic division
  read4b - fortran file binary read
  readb - fortran file binary read
  readc_ - read a character string
  readmps - reads a file in MPS format
  read - matrices read
  realtimeinit - set time unit
  realtime - set dates origin or waits until date
  real - real part
  rectangle_properties - description of the Rectangle entity properties
  recur - a bilinear recurrent equation
  reglin - Linear regression
  regress - regression coefficients of two variables
  remezb - Minimax approximation of magnitude response
  remez - Remez's algorithm
  repfreq - frequency response
  replot - redraw the current graphics window with new boundaries
  residu - residue
  resume - return or resume execution and copy some local variables
  return - return or resume execution and copy some local variables
  rgb2name - returns the name of a color
  riccati - Riccati equation
  riccsl - Riccati equation solver
  ricc - Riccati equation
  ric_desc - Riccati equation
  rlist - Scilab rational fraction function definition
  roots - roots of polynomials
  rotate - rotation of a set of points
  round - rounding
  routh_t - Routh's table
  rowcompr - row compression of polynomial matrix
  rowcomp - row compression, range
  rowinout - inner-outer factorization
  rowregul - removing poles and zeros at infinity
  rowshuff - shuffle algorithm
  rpem - RPEM estimation
  rref - computes matrix row echelon form by lu transformations
  rtitr - discrete time response (transfer matrix)
  rubberbox - Rubberband box for rectangle selection
  salesman - solves the travelling salesman problem
  samplef - sample with replacement from a population and frequences of his values.
  sample - Sampling with replacement
  samwr - Sampling without replacement
  savewave - save data into a sound <<wav>> file.
  save_graph - saves a graph
  save - saving variables in binary files
  scaling - affine transformation of a set of points
  scanf_conversion - scanf, sscanf, fscanf conversion specifications
  scanf - Converts formatted input on standard input
  scf - set the current graphic figure (window)
  schur - [ordered] Schur decomposition of matrix and pencils
  sci2exp - converts an expression to a string
  sci2for - scilab function to Fortran routine conversion
  sci2map - Scilab to Maple variable conversion
  sciargs - scilab command line arguments
  scilab - Major unix script to execute Scilab and miscellaneous tools
  scilink - Unix script to relink Scilab
  scipad - Embedded Scilab text editor
  sci_files - How to write conversion functions
  sd2sci - gr_menu structure to scilab instruction convertor
  sda - Set default axes.
  sdf - Set default figure.
  secto3d - 3D surfaces conversion
  segs_properties - description of the Segments entity properties
  select - select keyword
  semicolon - (;) ending expression and row separator
  semidef - semidefinite programming
  semi - (;) instruction and row separator
  sensi - sensitivity functions
  setbpt - setting breakpoints
  setdiff - returns components of a vector which do not belong to another one
  seteventhandler - set an event handler for the current graphic window
  setfield - list field insertion
  setmenu - interactive button or menu activation
  set - set a property value of a graphic entity object or of a User Interface object.
  sfact - discrete time spectral factorization
  sgrid - s-plane grid lines.
  shortest_path - shortest path
  showprofile - extracts and displays execution profiles of a Scilab function
  show_arcs - highlights a set of arcs
  show_graph - displays a graph
  show_nodes - highlights a set of nodes
  show_pixmap - send the pixmap buffer to the screen
  sident - discrete-time state-space realization and Kalman gain
  signm - matrix sign function
  sign - sign function
  simp_mode - toggle rational simplification
  simp - rational simplification
  sincd - digital sinc function or Direchlet kernel
  sinc - sinc function
  sinc - samples of sinc function
  sinhm - matrix hyperbolic sine
  sinh - hyperbolic sine
  sinm - matrix sine function
  sin - sine function
  size - size of objects
  slash - (/) right division and feed back
  sm2des - system matrix to descriptor
  sm2ss - system matrix to state-space
  smooth - smoothing by spline functions
  solve - symbolic linear system solver
  sorder - computing the order of a discrete-time system
  sort - decreasing order sorting
  sound - sound player facility
  sp2adj - converts sparse matrix into adjacency form
  spaninter - subspace intersection
  spanplus - sum of subspaces
  spantwo - sum and intersection of subspaces
  sparse - sparse matrix definition
  spchol - sparse cholesky factorization
  spcompack - converts a compressed adjacency representation
  specfact - spectral factor
  spec - eigenvalues of matrices and pencils
  speye - sparse identity matrix
  spget - retrieves entries of sparse matrix
  splin2d - bicubic spline gridded 2d interpolation
  splin3d - spline gridded 3d interpolation
  splin - cubic spline interpolation
  split_edge - splits an edge by inserting a node
  spones - sparse matrix
  sprand - sparse random matrix
  sprintf - Emulator of C language sprintf function
  spzeros - sparse zero matrix
  sqroot - W*W' hermitian factorization
  sqrtm - matrix square root
  sqrt - square root
  squarewave - generates a square wave with period 2*%pi
  square - set scales for isometric plot (change the size of the window)
  srfaur - square-root algorithm
  srkf - square root Kalman filter
  ss2des - (polynomial) state-space to descriptor form
  ss2ss - state-space to state-space conversion, feedback, injection
  ss2tf - conversion from state-space to transfer function
  sscanf - Converts formatted input given by a string
  sskf - steady-state Kalman filter
  ssprint - pretty print for linear system
  ssrand - random system generator
  stabil - stabilization
  stacksize - set scilab stack size
  startup - startup file
  star - (*) multiplication operator
  stdevf - standard deviation
  stdev - standard deviation (row or column-wise) of vector/matrix entries
  str2code - return scilab integer codes associated with a character string
  strange - range
  strcat - catenate character strings
  strindex - search position of a character string in an other string.
  strings - Scilab Object, character strings
  string - conversion to string
  stripblanks - strips leading and trailing blanks of strings
  strong_connex - strong connected components
  strong_con_nodes - set of nodes of a strong connected component
  strsubst - substitute a character string by another in a character string.
  st_deviation - standard deviation (row or column-wise) of vector/matrix entries
  st_ility - stabilizability test
  sub2ind - matrix subscript values to linear index
  subf - symbolic subtraction
  subgraph - subgraph of a graph
  subplot - divide a graphics window into a matrix of sub-windows
  successors - head nodes of outgoing arcs of a node
  sum - sum (row sum, column sum) of vector/matrix entries
  supernode - replaces a group of nodes with a single node
  surface_properties - description of the 3D entities properties
  sva - singular value approximation
  svd - singular value decomposition
  svplot - singular-value sigma-plot
  sylm - Sylvester matrix
  sylv - Sylvester equation.
  symbols - scilab operator names
  sysconv - system conversion
  sysdiag - block diagonal system connection
  sysfact - system factorization
  syslin - linear system definition
  syssize - size of state-space system
  systems - a collection of dynamical system
  system - observation update
  systmat - system matrix
  tabul - frequency of values of a matrix or vector
  tangent - linearization of a dynamical system at an equilibrium point
  tanhm - matrix hyperbolic tangent
  tanh - hyperbolic tangent
  tanm - matrix tangent
  tan - tangent
  tdinit - interactive initialisation of the tdcs dynamical systems
  testmatrix - generate some particular matrices
  texprint - TeX output of Scilab object
  text_properties - description of the Text entity properties
  tf2des - transfer function to descriptor
  tf2ss - transfer to state-space
  then - keyword in if-then-else
  thrownan - eliminates nan values
  tic - start a stopwatch timer
  tilda - (~) logical not
  timer - cpu time
  time_id - SISO least square identification
  titlepage - add a title in the middle of a graphics window
  title_properties - description of the Title entity properties
  tk_getdir - dialog to get a directory path
  tk_getfile - dialog to get a file path
  tk_savefile - dialog to get a file path for writing
  tlist - Scilab object and typed list definition.
  toc - Read the stopwatch timer
  toeplitz - toeplitz matrix
  tohome - Move the cursor to the upper left corner of the Command Window
  tokenpos - returns the tokens positions in a character string.
  tokens - returns the tokens of a character string.
  trace - trace
  translatepaths - convert a set of Matlab M-files directories to Scilab
  trans_closure - transitive closure
  trans - low-pass to other filter transform
  tree2code - generates ascii definition of a Scilab function
  trfmod - poles and zeros display
  trianfml - symbolic triangularization
  tril - lower triangular part of matrix
  trimmean - trimmed mean of a vector or a matrix
  trisolve - symbolic linear system solver
  triu - upper triangle
  trzeros - transmission zeros and normal rank
  twinkle - is used to have a graphics entity twinkle
  typename - associates a name to variable type
  typeof - object type
  type - variable type
  uicontrol - create a Graphic User Interface object
  uimenu - Create a menu or a submenu in a figure
  uint16 - conversion to 2 bytes unsigned integer representation
  uint32 - conversion to 4 bytes unsigned integer representation
  uint8 - conversion to one byte unsigned integer representation
  ui_observer - unknown input observer
  ulink - unlink a dynamically linked shared object
  unglue - unglue an agragation and replace it by individual children.
  union - extract union components of a vector
  unique - extract unique components of a vector
  unix_g - shell (sh) command execution, output redirected to a variable
  unix_s - shell (sh) command execution, no output
  unix_w - shell (sh) command execution, output redirected to scilab window
  unix_x - shell (sh) command execution, output redirected to a window
  unix - shell (sh) command execution
  unobs - unobservable subspace
  unsetmenu - interactive button or menu or submenu de-activation
  user - interfacing a Fortran or C routine
  varargin - variable numbers of arguments in an input argument list
  varargout - variable numbers of arguments in an output argument list
  variancef - standard deviation of the values of a vector or matrix
  variance - variance of the values of a vector or matrix
  varn - symbolic variable of a polynomial
  vectorfind - finds in a matrix rows or columns matching a vector
  waitbar - Draw a waitbar
  warning - warning messages
  wavread - load .wav sound file
  wavwrite - writes .wav sound file
  wcenter - center and weight
  wfir - linear-phase FIR filters
  what - list the Scilab primitives
  whereami - display current instruction calling tree
  whereis - name of library containing a function
  where - get current instruction calling tree
  while - while keyword
  whos - listing of variables in long form
  who_user - listing of user's variables
  who - listing of variables
  wiener - Wiener estimate
  wigner - 'time-frequency' wigner spectrum
  winclose - close windows created by sciGUI
  window - symmetric window
  winlist - Return the winId of current window created by sciGUI
  winsid - return the list of graphics windows
  with_gtk - Checks if Scilab has been built with the "GIMP Toolkit" library
  with_pvm - Checks if Scilab has been built with the "Parallel Virtual Machine" interface
  with_texmacs - Checks if Scilab has been called by texmacs
  with_tk - Checks if Scilab has been built with TCL/TK
  writb - fortran file binary write
  write4b - fortran file binary write
  write - write in a formatted file
  xarcs - draw parts of a set of ellipses
  xarc - draw a part of an ellipse
  xarrows - draw a set of arrows
  xaxis - draw an axis
  xbasc - clear a graphics window and erase the associated recorded graphics
  xbasimp - send graphics to a Postscript printer or in a file
  xbasr - redraw a graphics window
  xchange - transform real to pixel coordinates
  xclear - clear a graphics window
  xclea - erase a rectangle
  xclick - wait for a mouse click
  xclip - set a clipping zone
  xdel - delete a graphics window
  xend - close a graphics session
  xfarcs - fill parts of a set of ellipses
  xfarc - fill a part of an ellipse
  xfpolys - fill a set of polygons
  xfpoly - fill a polygon
  xfrect - fill a rectangle
  xgetech - get the current graphics scale
  xgetfile - dialog to get a file path
  xgetmouse - get the mouse events and current position
  xget - get current values of the graphics context
  xgraduate - axis graduation
  xgrid - add a grid on a 2D plot
  xinfo - draw an info string in the message subwindow
  xinit - initialisation of a graphics driver
  xlfont - load a font in the graphic context or query loaded font
  xload - load a saved graphics
  xmltohtml - converts xml Scilab help files to html
  xname - change the name of the current graphics window
  xnumb - draw numbers
  xpause - suspend Scilab
  xpolys - draw a set of polylines or polygons
  xpoly - draw a polyline or a polygon
  xrects - draw or fill a set of rectangles
  xrect - draw a rectangle
  xrpoly - draw a regular polygon
  xs2fig - send graphics to a file in Xfig syntax
  xs2gif - send graphics to a file in GIF syntax
  xs2ppm - send graphics to a file in PPM syntax
  xs2ps - send graphics to a file in PS syntax
  xsave - save graphics into a file
  xsegs - draw unconnected segments
  xselect - raise the current graphics window
  xsetech - set the sub-window of a graphics window for plotting
  xsetm - dialog to set values of the graphics context
  xset - set values of the graphics context
  xstringb - draw strings into a box
  xstringl - compute a box which surrounds strings
  xstring - draw strings
  xtape - set up the record process of graphics
  xtitle - add titles on a graphics window
  x_choices - interactive Xwindow choices through toggle buttons
  x_choose - interactive Xwindow choice
  x_dialog - Xwindow dialog
  x_matrix - Xwindow editing of matrix
  x_mdialog - Xwindow dialog
  x_message_modeless - X window modeless message
  x_message - X window message
  yulewalk - least-square filter design
  zeropen - zero pencil
  zeros - matrix made of zeros
  zgrid - zgrid plot
  zpbutt - Butterworth analog filter
  zpch1 - Chebyshev analog filter
  zpch2 - Chebyshev analog filter
  zpell - lowpass elliptic filter
  %asn - elliptic integral
  %helps - Variable defining the path of help directories
  %k - Jacobi's complete elliptic integral
  %sn - Jacobi 's elliptic function
  About_M2SCI_tools - Generally speaking about tools to convert Matlab files to Scilab...
  AdCommunications - advanced communication toolbox for parallel programming
  Cste - Create a tree representing a constant
  Equal - Create a tree representing an instruction
  Example - just to test the environment
  Funcall - Create a tree representing a function call
  Graphics - graphics library overview
  G_make - call make or nmake
  Infer - Create a tree containing inference data
  LANGUAGE - Variable defining the language
  Matlab-Scilab_character_strings - Generally speaking about...
  Matplot1 - 2D plot of a matrix using colors
  Matplot - 2D plot of a matrix using colors
  NDcost - generic external for optim computing gradient using finite differences
  Operation - Create a tree representing an operation
  ScilabEval - tcl instruction : Evaluate a string with scilab interpreter
  Sfgrayplot - smooth 2D plot of a surface defined by a function using colors
  Sgrayplot - smooth 2D plot of a surface using colors
  Signal - Signal manual description
  Type - Create a tree containing type inference data
  TK_EvalFile - Reads and evaluate a tcl/tk file
  TK_EvalStr - Evaluate a string whithin the tcl/tk interpreter
  TK_GetVar - Get a tcl/tk variable value
  TK_SetVar - Set a tcl/tk variable value
  Variable - Create a tree representing a variable