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. 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>
