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This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name | ### sqrt()
Examples |
    noStroke();
    float a = sqrt(6561);  // Sets 'a' to 81
    float b = sqrt(625);   // Sets 'b' to 25
    float c = sqrt(1);     // Sets 'c' to 1
    rect(0, 25, a, 10);
    rect(0, 45, b, 10);
    rect(0, 65, c, 10);
Description | Calculates the square root of a number. The square root of a number is always positive, even though there may be a valid negative root. The square root s of number a is such that s*s = a. It is the opposite of squaring.
Syntax |
    sqrt(n)
Parameters |
n | float: non-negative number
Returns | float
Related | pow() sq()

Updated on July 4, 2018 11:56:42am EDT