C standard library math functions


The words in the math.libm vocabulary call C standard library math functions. They are used to implement words in the math.functions vocabulary.

Warning
These functions are unsafe. The compiler special-cases them to operate on floats only. They can be called directly, however there is little reason to do so, since they only implement real-valued functions, and in some cases place restrictions on the domain:
USE: math.functions 2.0 acos .
C{ 0.0 1.316957896924817 }

USE: math.libm 2.0 facos .
0/0.

Trigonometric functions:
fcos ( x -- double )

fsin ( x -- double )

facos ( x -- double )

fasin ( x -- double )

fatan ( x -- double )

fatan2 ( x y -- double )


Hyperbolic functions:
fcosh ( x -- double )

fsinh ( x -- double )


Exponentials and logarithms:
fexp ( x -- double )

flog ( x -- double )

flog10 ( x -- double )


Powers:
fpow ( x y -- double )

fsqrt ( x -- double )