LISP Functions ⤴
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(sin)

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(sin angle)

Calculate the sine.

This function returns the sine of an angle. The angle is interpreted to be in radians and the result is an real number.

Examples

Code Returns
(sin pi) 0.00000
(sin (/ pi 2)) 1.00000
(sin 1.0) 0.841471
(sin 0) 0.00000

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(atan number1 [number2])

(cos angle)

(tan angle)

LISP Compatibility

pi

Programming Overview of LISP (LISt Processing) Language