C4. Elementary functions (transcendental functions)

Functions
def	cos_pi (x)
	cos(πx)
def	powm1 (x, y)
	x^y - 1
def	sin_pi (x)
	sin(πx)
def	sqrt1pm1 (x)
	sqrt(1 + x) - 1

Detailed Description

This is the group of C4. Elementary function (transcendental function) routines.