Reference for Processing version 1.2. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.


% (modulo)

int a = 20%100;         // Sets a to 20
int b = 20%100;         // Sets b to 20
float c = 75.0%100.0;   // Sets c to 75.0
float d = 275.0%100.0;  // Sets d to 75.0

float a = 0.0;
void draw() {
  a = (a + 0.5)%width;
  line(a, 0, a, height);
Description Calculates the remainder when one number is divided by another. It is extremely useful for keeping numbers within a boundary such as keeping a shape on the screen.
value1 int or float
value2 int or float
Returns int or float
Usage Web & Application
Related / (divide)
Updated on June 14, 2010 12:05:29pm EDT

Creative Commons License