29 lines
543 B
Racket
29 lines
543 B
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{(sqr-dif a b)}
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Square of the difference. Return the value of (a - b)**2. This is
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more efficient than using separate unit generators for each
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operation.
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@racketblock[
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(audition
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(out 0 (mul (sqr-dif (f-sin-osc ar 800 0)
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(f-sin-osc ar (x-line kr 200 500 5 do-nothing) 0))
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0.125)))
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]
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@racketblock[
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(let ((a (f-sin-osc ar 800 0))
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(b (f-sin-osc ar (x-line kr 200 500 5 do-nothing) 0)))
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(audition
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(out 0 (mul (mul (sub a b) (sub a b))
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0.125))))
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]
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