asin ( x -- y )
Factor handbook » The language » Numbers » Mathematical functions » Trigonometric and hyperbolic functions
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Vocabulary
math.functions

Inputs and outputs
xa number
ya number


Word description
Inverse trigonometric sine.

Definition
USING: kernel math math.libm ;

IN: math.functions

: asin ( x -- y )
dup [-1,1]? [ >float fasin ] [ i* asinh -i* ] if ; inline