| 46 |
|
#define ttan(x) (tsin(x)/tcos(x)) |
| 47 |
|
#endif |
| 48 |
|
|
| 49 |
< |
/* VC 2015 has those defined (XXX possibly earlier?) */ |
| 50 |
< |
#if ((defined(_WIN32) || defined(_WIN64)) |
| 51 |
< |
&& (!defined(_MS_VER) || _MS_VER < 1900)) |
| 52 |
< |
extern double erf(double x); |
| 53 |
< |
extern double erfc(double x); |
| 54 |
< |
#endif |
| 49 |
> |
/* defined in disk2square.c */ |
| 50 |
> |
extern void SDsquare2disk(double ds[2], double seedx, double seedy); |
| 51 |
> |
extern void SDdisk2square(double sq[2], double diskx, double disky); |
| 52 |
> |
|
| 53 |
|
/* defined in xf.c */ |
| 54 |
|
extern int xf(XF *ret, int ac, char *av[]); |
| 55 |
|
extern int invxf(XF *ret, int ac, char *av[]); |
