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
Math.atan(number);
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> <html> <head> <title> JavaScript ATAN Function </title> </head> <body> <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> <script> 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); </script> </body> </html>
OUTPUT
ANALYSIS
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);