= private = protected
tan(p1)
Computes the tangent of x (expressed in radians).
Domain: (-INFINITY, INFINITY)
Codomain: (-INFINITY, INFINITY)
Math.tan(0) #=> 0.0
static VALUE math_tan(VALUE obj, VALUE x) { Need_Float(x); return DBL2NUM(tan(RFLOAT_VALUE(x))); }