fatan2 ( x y -- double )
C standard library math functions

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Vocabulary
math.libm

Inputs

x	a real
y	a real

Outputs

double

a real

Word description
Calls the two-parameter inverse trigonometric tangent function from the C standard library. User code should call arg instead.

Definition

USING: alien.c-types alien.syntax ;

IN: math.libm

LIBRARY: libm FUNCTION-ALIAS: fatan2 double atan2
    ( double x, double y )