27 lines
792 B
Text
27 lines
792 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{(pow a b)}
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Exponentiation, written ** in sclang. When the signal is negative
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this function extends the usual definition of exponentiation and
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returns neg(neg(a) ** b). This allows exponentiation of negative
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signal values by noninteger exponents.
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(audition
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(out 0 (let ((a (mul (f-sin-osc ar 100 0) 0.1)))
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(mce2 a (pow a 10)))))
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http://create.ucsb.edu/pipermail/sc-users/2006-December/029998.html
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(let* ((n0 (mul-add (lf-noise2 kr 8) 200 300))
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(n1 (mul-add (lf-noise2 kr 3) 10 20))
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(s (blip ar n0 n1))
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(x (mouse-x kr 1000 (mul sample-rate 0.5) 1 0.1))
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(y (mouse-y kr 1 24 1 0.1))
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(d (latch s (impulse ar x 0)))
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(b (u:round d (pow 0.5 y))))
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(audition
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(out 0 (mce2 d b))))
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