cis

cis Function

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) 

See Also:

Section 12.1.3.3 (Rule of Float Substitutability)

Expanded Reference: cis

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(cis )