void make_numfmt(char *fmtstr, int *fldwid, int *nfrac, double min, double max, int nint);
int axis_scale (double min, double max, int nint, double *minp, double *maxp, int *nintp);
void make_numfmt(char *fmtstr, int *fldwid, int *nfrac, double min, double max, int nint);
int axis_scale (double min, double max, int nint, double *minp, double *maxp, int *nintp);