Math.cos( ) In JavaScript

The Math.con() function in Javascript is used to return the cosine of a number.
The Math.cos() method returns a numeric value between -1 and 1, which represents the cosine of the angle given in radians.
cos() is a static method of Math, therefore, it is always used as Math.cos(), rather than as a method of a Math object created.

Syntax:

Math.cos(value)

Parameters Used:
Value:A number given in radians.

Return Value:
The Math.cos() function returns the cosine of the given numbers which range from -1 to 1.

Examples:

1. When zero is passed as a parameter.

   <script type="text/javascript">    document.write("Output : " + Math.cos(0)); </script>

   Output:

   Output : 1

2. When 1 is passed as a parameter.

   <script type="text/javascript">    document.write("Output : " + Math.cos(1)); </script>

   Output:

   Output : 0.5403023058681398

3. When PI is passed as a parameter.

   <script type="text/javascript">    document.write("Output : " + Math.cos(Math.PI)); </script>

   Output:

   Output : -1