Handbook
Glossary
fatan ( x -- double )
C standard library math functions
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fasin ( x -- double )
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fatan2 ( x y -- double )
Vocabulary
math
.
libm
Inputs
x
a
real
Outputs
double
a
real
Word description
Calls the inverse trigonometric tangent function from the C standard library. User code should call
atan
instead.
Definition
USING:
alien.c-types
alien.syntax
;
IN:
math.libm
LIBRARY:
libm
FUNCTION-ALIAS:
fatan
double atan (
double
x )