The JavaScript Cos function is a Math function which calculates the Trigonometry Cosine for the specified expression. The Cos function returns the value between -1 and 1. The syntax of the JavaScript Cos Function is
Math.cos(number);
The mathematical formula of the JavaScript Trigonometry Cosine function
COS(x) = Length of the Adjacent Side / Length of the Hypotenuse
JavaScript Cos Function Example
In this JS COS example, We are going to find the Cosine values of different data types and display the output
TIP: Please refer to ACOS Function to know the JavaScript Arc Cosine.
<!DOCTYPE html>
<html>
<head>
<title> JavaScript COS Function </title>
</head>
<body>
<h1> JavaScript COS 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.cos(20);
document.getElementById("Neg").innerHTML = Math.cos(-10);
document.getElementById("Dec").innerHTML = Math.cos(40.45);
document.getElementById("Neg_Dec").innerHTML = Math.cos(-60.75);
document.getElementById("Str").innerHTML = Math.cos("JavaScript");
document.getElementById("Null").innerHTML = Math.cos(null);
document.getElementById("Multi").innerHTML = Math.cos(0.25 + 0.55 - 0.77);
</script>
</body>
</html>
OUTPUT
