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.
Name 
mag() 
Examples 
float x1 = 20;
float x2 = 80;
float y1 = 30;
float y2 = 70;
line(0, 0, x1, y1);
println(mag(x1, y1)); // Prints 36.05551
line(0, 0, x2, y1);
println(mag(x2, y1)); // Prints 85.44004
line(0, 0, x1, y2);
println(mag(x1, y2)); // Prints 72.8011
line(0, 0, x2, y2);
println(mag(x2, y2)); // Prints 106.30146 
Description 
Calculates the magnitude (or length) of a vector. A vector is a direction in space commonly used in computer graphics and linear algebra. Because it has no "start" position, the magnitude of a vector can be thought of as the distance from coordinate (0,0) to its (x,y) value. Therefore, mag() is a shortcut for writing "dist(0, 0, x, y)". 
Syntax 
mag(a, b)
mag(a, b, c) 
Parameters 
a 
float or int: first value 
b 
float or int: second value 
c 
float or int: third value 

Returns 
float 
Usage 
Web & Application 
Related 
dist()

Updated on June 14, 2010 12:05:29pm EDT