33 |
|
#define PI 3.14159265358979323846 |
34 |
|
#endif |
35 |
|
#endif |
36 |
+ |
/* defined in tcos.c */ |
37 |
+ |
extern double tcos(double x); |
38 |
+ |
extern double atan2a(double y, double x); |
39 |
|
|
40 |
|
#ifdef FASTMATH |
41 |
|
#define tcos cos |
46 |
|
#define tsin(x) tcos((x)-(PI/2.)) |
47 |
|
#define ttan(x) (tsin(x)/tcos(x)) |
48 |
|
#endif |
46 |
– |
/* defined in tcos.c */ |
47 |
– |
extern double tcos(double x); |
48 |
– |
extern double aatan2(double y, double x); |
49 |
|
/* defined in xf.c */ |
50 |
|
extern int xf(XF *ret, int ac, char *av[]); |
51 |
|
extern int invxf(XF *ret, int ac, char *av[]); |