.radCos()

Description

radCos calculates the cosine of a number in radians. Unlike .cos which uses degrees, this method expects radians.

Parameters

radCos takes no parameters.

Usage On Numbers

num = 3.14159 // π
log num.radCos()
// approximately -1 (cosine of π)

num = 1.5708 // π/2
log num.radCos()
// approximately 0 (cosine of π/2)

num = 0
log num.radCos()
// 1 (cosine of 0)