Java Math - cos() Method
The Java cos() method returns trigonometric cosine of an angle (angle should be in radians). In special cases it returns the following:
- If the argument is NaN or an infinity, then the result is NaN.
In the graph below, cos(x) vs x is plotted.
Syntax
public static double cos(double arg)
Parameters
arg |
Specify the angle in radian. |
Return Value
Returns the trigonometric cosine of an angle.
Exception
NA.
Example:
In the example below, cos() method is used to find out the trigonometric cosine of an angle.
public class MyClass { public static void main(String[] args) { System.out.println(Math.cos(Math.PI/6)); System.out.println(Math.cos(Math.PI/4)); System.out.println(Math.cos(Math.PI/3)); } }
The output of the above code will be:
0.8660254037844387 0.7071067811865476 0.5000000000000001
❮ Java Math Methods