fcos ( x -- double )
C standard library math functions
Next:fsin ( x -- double )


Vocabulary
math.libm

Inputs
xa real


Outputs
doublea real


Word description
Calls the trigonometric cosine function from the C standard library. User code should call cos instead.

Definition
USING: alien.c-types alien.syntax ;

IN: math.libm

LIBRARY: libm FUNCTION-ALIAS: fcos double cos ( double x )