The words in the math.libm vocabulary call C standard library math functions. They are used to implement words in the math.functions vocabulary.
Trigonometric functions:
Hyperbolic functions:
Exponentials and logarithms:
Powers:
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:
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 1.3169578969248166 }
C{ 0.0 1.3169578969248166 }
USE: math.libm
2.0 facos .
0/0.
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 )