# | Line 46 | Line 46 | extern double atan2a(double y, double x); | |
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46 | #define ttan(x) (tsin(x)/tcos(x)) | |
47 | #endif | |
48 | ||
49 | – | #if defined(_WIN32) || defined(_WIN64) |
50 | – | extern double erf(double x); |
51 | – | extern double erfc(double x); |
52 | – | #endif |
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[]); |
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