JavaScript ATAN

The JavaScript ATAN function is a Math function, which is used to calculate the trigonometry Arc Tangent for the specified expression. Arc Tangent also called the inverse of a TANGENT function. The syntax of the JavaScript ATAN Function is


JavaScript ATan Function Example

In this JavaScript example, We are going to find the Arc Tangent values of different data types and display the output

<!DOCTYPE html>
    <title> JavaScript ATAN Function </title>
  <h1> JavaScript ATAN Function </h1>
  <p id = "Pos"></p>
  <p id = "Neg"></p>
  <p id = "Dec"></p>
  <p id = "Neg_Dec"></p>
  <p id = "Str"></p>
  <p id = "Exp"></p>
  <p id = "Null"></p>
  <p id = "Multi"></p>
    document.getElementById("Pos").innerHTML = Math.atan(1);
    document.getElementById("Neg").innerHTML = Math.atan(-1);
    document.getElementById("Dec").innerHTML = Math.atan(0.45);
    document.getElementById("Neg_Dec").innerHTML = Math.atan(-0.75);
    document.getElementById("Str").innerHTML = Math.atan("JavaScript");
    document.getElementById("Null").innerHTML = Math.atan(null);
    document.getElementById("Multi").innerHTML = Math.atan(25 + 55 - 77);
JavaScript ATAN Function

String Value in ATAN Function returns NaN (Not a Number)

document.getElementById("Str").innerHTML = Math.atan("JavaScript");

Null Values in JS ATAN Math function returns Zero as output

document.getElementById("Null").innerHTML = Math.atan(null);