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SINCOS(3) Library Functions Manual SINCOS(3) NAME sincos, sincosf, sincosl -- sine and cosine functions LIBRARY Math Library (libm, -lm) SYNOPSIS #include <math.h> void sincos(double x, double *s, double *c); void sincosf(float x, float *s, float *c); void sincosl(long double x, long double *s, long double *c); DESCRIPTION The sincos(), sincosf(), and sincosl() functions compute the sine and cosine of x. Using these functions allows argument reduction to occur only once instead of twice with individual invocations of sin() and cos(). Like sin() and cos(), a large magnitude argument may yield a result with little or no significance. RETURN VALUES Upon returning from sincos(), sincosf(), and sincosl(), the memory pointed to by *s and *c are assigned the values of sine and cosine, re- spectively. SEE ALSO cos(3), sin(3) HISTORY These functions were added to FreeBSD 11.2 to aid in writing various complex function contained in ISO/IEC 9899:1999 ("ISO C99"). FreeBSD 14.3 March 12, 2011 SINCOS(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | HISTORY
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