Java.lang.StrictMath.atan() Method

Advertisements


Description

The java.lang.StrictMath.atan() method returns the arc tangent of a value.The returned angle is in the range -pi/2 through pi/2.It include these cases:

  • If the argument is NaN, then the result is NaN.
  • If the argument is zero, then the result is a zero with the same sign as the argument.

Declaration

Following is the declaration for java.lang.StrictMath.atan() method

public static double atan(double a)

Parameters

  • a -- This is the value whose arc tangent is to be returned.

Return Value

This method returns the arc tangent of the argument.

Exception

  • NA

Example

The following example shows the usage of java.lang.StrictMath.atan() method.

package com.tutorialspoint;

import java.lang.*;

public class StrictMathDemo {

  public static void main(String[] args) {
  
    double d1 = 0.20 , d2 = 60.00, d3 = 0;

    /* returns the arc tangent of a value, returned angle range is
    -pi/2 to pi/2  */
    
    double dAbsValue = StrictMath.atan(d1); 
    System.out.println("arc tangent of " + d1 + " = " + dAbsValue);
    
    dAbsValue = StrictMath.atan(d2); 
    System.out.println("arc tangent of " + d2 + " = " + dAbsValue);
        
    dAbsValue = StrictMath.atan(d3); 
    System.out.println("arc tangent of " + d3 + " = " + dAbsValue);
  }
}

Let us compile and run the above program, this will produce the following result:

arc tangent of 0.2 = 0.19739555984988078
arc tangent of 60.0 = 1.554131203080956
arc tangent of 0.0 = 0.0



Advertisements
Advertisements