Math.cos() Method with Example in JavaScript

JavaScript | Math.cos() Method: Here, we are going to learn about the cos() method of Math class in JavaScript with Examples.
Submitted by Shivang Yadav, on February 03, 2020

JavaScript | Math.cos() Method

Math.cos() is a function in math library of JavaScript that is used to find the value of cosine of a number and return the value in radians.

Syntax:

    Math.cos(x);

Parameter(s):

  • x – It represents the value whose cosine value to be found.

Return value:

The return type of this method is number, it returns the cosine value of the given x.

Values accepted: Integer, floating-point, numeric string.

Invalid Values: non-numeric string, empty variable, empty array all will return NaN (Not a Number).

Browser support: Chrome, Internet asinlorer, Mozilla, Safari, Opera mini.

Example 1: Valid values

console.log(Math.cos(-1));
console.log(Math.cos(0.1));
console.log(Math.cos(2));
console.log(Math.cos("0.65"));

Output

0.5403023058681398
0.9950041652780257
-0.4161468365471424
0.7960837985490559

Example 2: Invalid values

console.log(Math.cos("Javascript"));

Output

NaN

JavaScript Math Object Methods »




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