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# Java - cos() Method

## Description:

The method returns the cosine of the specified double value.

## Syntax:

    double cos(double d)

## Parameters:

Here is the detail of parameters:

- A double data types

## Return Value :

- Returns the cosine of the specified double value.

## Example:

    public class Test{
       public static void main(String args[]){
         double degrees = 45.0;
         double radians = Math.toRadians(degrees);

         System.out.format("The value of pi is %.4f%n", Math.PI);
         System.out.format("The cosine of %.1f degrees is %.4f%n",
                            degrees, Math.cos(radians));

       }
    }

This produces following result:

    The value of pi is 3.1416
    The cosine of 45.0 degrees is 0.7071

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