cis ( arg -- z ) (original) (raw)
cis ( arg -- z )
Factor handbook » The language » Numbers » Mathematical functions » Powers and logarithms
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Inputs
| arg | a real number |
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Outputs
| z | a complex number on the unit circle |
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Word description
Computes a point on the unit circle using Euler's formula for e^(arg*i).
See also
e^
Definition
USING: kernel math math.libm ;
: cis ( arg -- z ) >float [ fcos ] [ fsin ] bi rect> ; inline