Reference for Processing (BETA) version 0135+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.

Name

random()

Examples
for(int i=0; i<100; i++) {
  float r = random(50);
  stroke(r*5);
  line(50, i, 50+r, i);
}

for(int i=0; i<100; i++) {
  float r = random(-50, 50);
  stroke(abs(r*5));
  line(50, i, 50+r, i);
}
Description Generates random numbers. Each time the random() function is called, it returns an unexpected value within the specified range. If one parameter is passed to the function it will return a float between zero and the value of the high parameter. The function call random(5) returns values between 0 and 5. If two parameters are passed, it will return a float with a value between the the parameters. The function call random(-5, 10.2) returns values between -5 and 10.2. To convert a floating-point random number to an integer, use the int() function.
Syntax
random(high);
random(low, high);
Parameters
high int or float
low int or float
Usage Web & Application
Related randomSeed()
noise()
Updated on March 26, 2008 10:43:13pm PDT

Creative Commons License