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.

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Output:

0.5403023058681398  -0.4161468365471424  

Example 2

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

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Output:

0.5403023058681398  0.8775825618903728  

Example 3

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

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Output:

1  -1  

Example 4

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

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