Syntax:
cis radians => number
Arguments and Values:
radians---a real.
number---a complex.
Description:
cis returns the value of e^i* radians, which is a complex in which the real part is equal to the cosine of radians, and the imaginary part is equal to the sine of radians.
Examples:
(cis 0) => #C(1.0 0.0)
Side Effects: None.
Affected By: None.
Exceptional Situations: None.
See Also:
Section 12.1.3.3 (Rule of Float Substitutability)
Notes: None.
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