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.
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.
let a = 0;
let b = 88;
let c = -1;
let d = -0.5;
let e = 5;
let v = atan(a);
let w = atan(b);
let x = atan(c);
let y = atan(d);
let z = atan(e);
"Arc tangent value of 0 is : "
+ v, 50, 30);
"Arc tangent value of 88 is : "
+ w, 50, 50);
"Arc tangent value of -1 is : "
+ x, 50, 70);
"Arc tangent value of -0.5 is : "
+ y, 50, 90);
"Arc tangent value of 5 is : "
+ z, 50, 110);
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