rsc3/doc/help/ugen/unary-ops/is-positive.help.scrbl

#lang scribble/manual
@(require (for-label racket))

@title{(is-positive a)}


Predicate to determine if a value is positive.


@racketblock[
(define (is-positive a)
  (ge a 0.0))
]


@racketblock[
(let* ((a (line ar -1 1 1 remove-synth))
       (b (is-positive a))
       (f (mul-add (mce2 a b) 600 900)))
  (audition 
   (out 0 (mul (sin-osc ar f 0) 0.1))))
]