p5.js atan() Function
The atan() function in p5.js is used to calculate the inverse of tan() or arc tangent of a value ranging in between -Infinity to Infinity (exclusive) and gives result in the range of -π/2 to π/2.
Syntax:
atan(P)
Parameters: This function accepts a parameter “P” which is a value ranging from -1 to 1 and whose arc tangent is calculated.
Return Value: It returns the arc tangent of a value and its range is in between -π/2 to π/2.
Below program illustrates the atan() function in p5.js:
Example: This example uses atan() function to get arc tangent of a value.
function setup() { // Create Canvas of size 270*80 createCanvas(550, 130); } function draw() { // Set the background color background(220); // Initialize the parameter with some values let a = 0; let b = 88; let c = -1; let d = -0.5; let e = 5; // Call to atan() function let v = atan(a); let w = atan(b); let x = atan(c); let y = atan(d); let z = atan(e); // Set the size of text textSize(16); // Set the text color fill(color( 'red' )); // Getting arc tangent value text( "Arc tangent value of 0 is : " + v, 50, 30); text( "Arc tangent value of 88 is : " + w, 50, 50); text( "Arc tangent value of -1 is : " + x, 50, 70); text( "Arc tangent value of -0.5 is : " + y, 50, 90); text( "Arc tangent value of 5 is : " + z, 50, 110); } |
Output:
Reference: https://p5js.org/reference/#/p5/atan