text: #include <math.h>
  #include "../machine.h"
  void C2F(vceil)(n,x,ix,y,iy)
       double *x, *y;
       int *n, *ix, *iy;
  {
    int ix1,iy1,i;
    ix1=0;
    iy1=0;
  
    if (*ix<0) ix1=-(*n-1)*(*ix);
    if (*iy<0) iy1=-(*n-1)*(*iy);
  
    for (i=0;i<*n;i++) {
      y[iy1]=ceil(x[ix1]);
      iy1 += *iy;
      ix1 += *ix;
    }
  }
  