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33 .Nd sine and cosine functions
39 .Fn sincos "double x" "double *s" "double *c"
41 .Fn sincosf "float x" "float *s" "float *c"
43 .Fn sincosl "long double x" "long double *s" "long double *c"
50 functions compute the sine and cosine of
52 Using these functions allows argument reduction to occur only
53 once instead of twice with individual invocations of
61 a large magnitude argument may yield a result with little
69 the memory pointed to by
73 are assigned the values of sine and cosine, respectively.
78 These functions were added to
80 to aid in writing various complex function contained in