atan2() is an inbuilt method in Java that is used to return the theta component from the polar coordinate. The atan2() method returns a numeric value between –
and representing the angle of a (x, y) point and the positive x-axis. It is the counterclockwise angle, measured in radian, between the positive X-axis, and the point (x, y).
Syntax :
Math.atan2(double y, double x) where, x and y are X and Y coordinates in double data type.
Returns :
It returns a double value. The double value is from polar coordinate (r, theta).
Example: Program demonstrating the atan2() method
Java
// Java program for implementation of// atan2() methodimport java.util.*;class GFG { // Driver Code public static void main(String args[]) { // X and Y coordinates double x = 90.0; double y = 15.0; // theta value from polar coordinate (r, theta) double theta = Math.atan2(y, x); System.out.println(theta); }} |
Output
0.16514867741462683
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