Punop unary operator pattern

superclass: Pattern

Punop(operator, a)

Returns a stream that applies the unary operator to the stream values of the receiver .

Usually, this is the result of applying a unary operator (i.e. a method with one argument) to a pattern.

operator - operator to be applied

a - a pattern (or compatible pattern input)

examples of unary operators are: squared, sqrt, sin, tan ...

See also: Pnaryop, Pbinop, UnaryOpFunction

// example

(

var a;

a = Punop(\sqrt, Pseries(0, 1, 12));

a.asStream.all;

)

// this is the same as:

(

var a;

a = Pseries(0, 1, 12).sqrt;

a.asStream.all;

)

// some common cases:

Pseq([1, 2, 3]).squared;

Pseq([0.2, 0.5, 0.8]).coin;

Pwhite(-100, 100, inf).abs;

// sound example

(

SynthDef(\help_sinegrain,

{ arg out=0, freq=440, sustain=0.05, amp=0.1;

var env;

env = EnvGen.kr(Env.perc(0.01, sustain, 0.2, amp), doneAction:2);

Out.ar(out, SinOsc.ar(freq, 0, env))

}).store;

)

(

var a;

a = Pn(Punop(\sqrt, Pseries(0, 1, 12))).asStream;

{

a.do { |val|

Synth(\help_sinegrain, [\freq, a * 200 + 300].postln);

0.5.wait;

}

}.fork;

)

(

Pbind(

\dur, 0.01,

\instrument, \help_sinegrain,

\note, Pn(Punop(\sqrt, Pseries(0, 1, 12)))

).play;

)

// these are the same as:

(

var a;

a = Pn(Pseries(0, 1, 12).sqrt).asStream;

{

a.do { |val|

Synth(\help_sinegrain, [\freq, a * 200 + 300].postln);

0.05.wait;

}

}.fork;

)

(

Pbind(

\dur, 0.1,

\instrument, \help_sinegrain,

\note, Pn(Pseries(0, 1, 12).sqrt)

).play;

)