JavaScript Math cos() method

The JavaScript math cos() method returns the cosine of the given number. The value returned by cos() method ranges -1 to 1, which represents the cosine of the angle.

Syntax

The cos() method is represented by the following syntax:

Parameter

num - A number.

Return

The cosine of a number.

JavaScript Math cos() method example

Here, we will understand cos() method through various examples.

Example 1

Let's see a simple example of cos() method.

Output:

0.5403023058681398
-0.4161468365471424

Example 2

In this example, we will use cos() method with negative numbers.

Output:

0.5403023058681398
0.8775825618903728

Example 3

Let's see cos() method with some different test cases.

Output:

1
-1

Example 4

Here, you can test cos() method with your own test cases.