# p5.js | sqrt() function

• Last Updated : 09 Apr, 2019

The sqrt() function in p5.js is used to get the square root of any input number.

Syntax:

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`sqrt(n)`

Parameters: This function accepts single parameter n which is an input non-negative number whose square root is being calculated.

Return Value: It returns the square root of any input number.

Below program illustrates the sqrt() function in p5.js:

Example: This example uses sqrt() function to get the square root of an input number.

 `function` `setup() { ``  ` `    ``// Create Canvas of size 270*80 ``    ``createCanvas(350, 80); ``} ``  ` `function` `draw() { ``      ` `    ``// Set the background color ``    ``background(220); ``      ` `    ``// Initialize the parameter ``    ``let a = 25; ``    ``let b = 16; ``      ` `    ``// Call to sqrt() function ``    ``let x = sqrt(a);``    ``let y = sqrt(b); ``      ` `    ``// Set the size of text ``    ``textSize(16); ``      ` `    ``// Set the text color ``    ``fill(color(``'red'``)); ``      ` `    ``// Getting output``    ``text(``"Square root of 25 is: "` `+ x, 50, 30);``    ``text(``"Square root of 16 is: "` `+ y, 50, 50); ``} `

Output: Reference: https://p5js.org/reference/#/p5/sqrt

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