Scilab Function

testmatrix - generate some particular matrices

### Calling Sequence

  `[y]=testmatrix(name,n)`

### Parameters

- `name` : a character string
- `n` : integers, matrix size
- `y` : `n` x `m` matrix

### Description

Create some particular matrices

  testmatrix('magi',n): returns a magic square of size `n` .
  testmatrix('frk',n): returns the Franck matrix :
  testmatrix('hilb',n): is the inverse of the nxn Hilbert matrix `(Hij= 1/(i+j-1))` .