sin(p1)
Computes the sine of x (expressed in radians). Returns -1..1.
/* * call-seq: * Math.sin(x) => float * * Computes the sine of <i>x</i> (expressed in radians). Returns * -1..1. */ static VALUE math_sin(obj, x) VALUE obj, x; { Need_Float(x); return rb_float_new(sin(RFLOAT(x)->value)); }