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