sqrt()

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.

Related

• pow()
• sq()

Example

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);