JavaScript Math cos( ) Method

Below is the example of the Math cos() Method.

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

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• Output:

  The cos of 0 : 1

The Math.cos() method 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. The 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: This function accepts single parameter as mentioned above and described below:

• value: This parameter is a number given in radians.

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

Below example illustrate the cos() method in JavaScript:

• Example 1:

  Input: Math.cos(010)
  Output : -0.14550003380861354

• Example 2:

  Input: Math.cos(10)
  Output : -0.8390715290764524

More codes for the above method are as follows:
Program 1: When 1 is passed as a parameter.

Output:

Result : 0.5403023058681398

Program 2: When PI is passed as a parameter.

Output:

Result : -1

Supported Browsers:

• Google Chrome
• Internet Explorer
• Firefox
• Opera
• Safari

Shubrodeep Banerjee

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