13 lines
257 B
Racket
13 lines
257 B
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(cos a)}
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Cosine.
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(let* ((a (line kr (- pi) pi 1 remove-synth))
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(b (sub (fdiv (u:cos a) (/ pi 2)) 1))
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(f (mul-add b 900 1600)))
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(audition
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(out 0 (mul (sin-osc ar f 0) 0.1))))
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