Computational routine
eng

##
logblk

### File content

          subroutine logblk(flag,nevprt,t,xd,x,nx,z,nz,tvec,ntvec,
         &     rpar,nrpar,ipar,nipar,u,nu,y,ny)
    c     Copyright INRIA

    c     Scicos block simulator
    c     y=log(u)/log(rpar(1))
    c
          double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*),y(*)
          integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
          integer nipar,nu,ny

    c
          if(flag.eq.1) then
             do 15 i=1,nu
                if(u(i).gt.0.0d0) then
                   y(i)=log(u(i))/log(rpar(1))
                else
                   flag=-2
                   return
                endif
     15      continue
          endif
          if(flag.eq.6) then
             do 20 i=1,nu
                if(u(i).gt.0.0d0) then
                   y(i)=log(u(i))/log(rpar(1))
                endif
     20      continue
          endif

          end