static void mTXChMatrix (MTXCh *x, t_symbol *s, 
			      int argc, t_atom *argv)
{
  int rows = atom_getint (argv++);
  int columns = atom_getint (argv++);
  int size = rows * columns;
  int in_size = argc-2;
  unsigned int n;


  /* size check */
  if (!size) 
    post("mtx_circular_harmonics: invalid dimensions");
  else if (in_size<size) 
    post("mtx_circular_harmonics: sparse matrix not yet supported: use \"mtx_check\"");
  else if ((rows!=1)||(columns<1))
     post("mtx_circular_harmonics: 1 X L matrix expected with phi vector, but got more rows/no entries");
  else {
     if (x->l!=columns) {
        deleteMTXChdata(x);
        x->l=columns;
        allocMTXChdata(x);
     }
     for (n=0;n<x->l;n++) {
        x->phi[n]=(double) atom_getfloat(argv+n);
     }
  
     if (x->wc!=0) {
		int n;
        chebyshev12(x->phi, x->wc);
        in_size=x->l*(2*x->nmax+1);
        SETFLOAT(x->list_ch,(float)x->l);
        SETFLOAT(x->list_ch+1,(float)(2*x->nmax+1));
        for (n=0;n<in_size; n++) 
           SETFLOAT(x->list_ch+n+2,(float)x->wc->t[n]);
        mTXChBang(x);
     }
     else 
        post("mtx_circular_harmonics: memory error, no operation");
  }


}
int main (int argc, char *argv[])
{
  int nmax, l, lc, n, m;
  Cheby12WorkSpace *wc=0;
  double *ptr,*phi;

  if (argc <3) {
    printf("chebyshev12 requires nmax as input argument followed by phi values\n");
    return 0;
  }

  nmax=atoi(argv[1]);
  l=argc-2;
  if ((phi=(double*)calloc(l,sizeof(double)))==0) {
    printf("chebyshev12 could not allocate memory for %d phi-values\n",l);
    return 0;
  }
  if ((wc=chebyshev12_alloc(nmax,l))==0) {
    printf("chebyshev12 could not allocate memory for n=%d\n and l=%d\n",nmax,
           l);
    return 0;
  }
  for (n=0; n<l; n++) {
    phi[n]=atof(argv[n+2]);
  }
  chebyshev12(phi,wc);

  ptr=wc->t;
  for (lc=0; lc<l; lc++) {
    printf("pt %d:\n",lc);
    for (m=-nmax; m<=nmax; m++) {
      printf("T[%2d](%7.4f)=%7.4f\n",m,phi[lc],*ptr++);
    }
  }
  chebyshev12_free(wc);
  free(phi);
  return 1;
}