Trusted answers to developer questions

Tarun Telang

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Java has a built-in `Math`

class, defined in the `java.lang`

package, which contains important functions to perform basic mathematical operations. The class has the ** cos() method**, which is used to compute a specified angle’s trigonometric cosine.

```
public static double cos(double angle);
```

`angle`

represents the double value, corresponding to the angle in radians, of which we have to find the*cosine*.

- The function returns the double value corresponding to the trigonometric cosine of the
`angle`

.

If the value of `angle`

is infinity or `NaN`

.

To convert an angle measured in degrees to an equivalent angle measured in radians, we can use the built-in method

`Math.toRadians(double angle_in_degrees)`

.

import java.lang.Math;class HelloWorld {public static void main( String args[] ) {double param = Math.toRadians(30);double result = Math.cos(param);System.out.println("cos(" + param + ") = " + result);param = Math.toRadians(45);result = Math.cos(param);System.out.println("cos(" + param + ") = " + result);param = Math.toRadians(60);result = Math.cos(param);System.out.println("cos(" + param + ") = " + result);param = Math.toRadians(90);result = Math.cos(param);System.out.println("cos(" + param + ") = " + result);result = Math.sin(Double.POSITIVE_INFINITY);System.out.println("cos(∞) = " + result);result = Math.sin(Double.NaN);System.out.println("cos(NaN) = " + result);}}

Example code for Math.cos() in java

RELATED TAGS

java

communitycreator

math.cos()

math

CONTRIBUTOR

Tarun Telang

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Keep Exploring

Related Courses