facos ( x -- double )
C standard library math functions

Prev:	fsin ( x -- double )
Next:	fasin ( x -- double )

Vocabulary
math.libm

Inputs

x

a real

Outputs

double

a real

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

Definition

USING: alien.c-types alien.syntax ;

IN: math.libm

LIBRARY: libm FUNCTION-ALIAS: facos double acos ( double x )