The JavaScript cos function is a Math function that calculates the Trigonometry Cosine for the specified expression. The cos function returns the value between -1 and 1, and its syntax is
Math.cos(number);
The mathematical formula of the JS Trigonometry Cosine function is the Length of the Adjacent Side / Length of the Hypotenuse.
In this example, we will find the Cosine values of different data types and display the output. Please refer to ACOS Function to know the JScript Arc Cosine.
<!DOCTYPE html>
<html>
<head>
<title> JavaScriptCOSFunction </title>
</head>
<body>
<h1> JavaScriptCOSFunction </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>
