cos ( x -- y )
Factor handbook » The language » Numbers » Mathematical functions » Trigonometric and hyperbolic functions

Next:

sin ( x -- y )

Vocabulary
math.functions

Inputs and outputs

x	a number
y	a number

Word description
Trigonometric cosine.

Definition

IN: math.functions

GENERIC: cos ( x -- y ) foldable flushable

Methods

USING: kernel math math.functions math.libm ;

M: complex cos
    >float-rect
    [ [ fcos ] [ fcosh ] bi* * ]
    [ [ fsin neg ] [ fsinh ] bi* * ] 2bi rect> ;


USING: math math.functions math.libm ;

M: float cos fcos ; inline


USING: math math.functions ;

M: real cos >float cos ; inline