The java.lang.Math.atan() returns the arc tangent of an angle in between -pi/2 through pi/2. If the argument is NaN, then the result is NaN.
Note:If the argument is zero, then the result is a zero with the same sign as the argument.
Syntax :
public static double atan(double a) Parameter : a : the value whose arc tangent is to be returned. Return : This method returns the arc tangent of the argument.
Example :To show working of java.lang.Math.atan() method.
// Java program to demonstrate working// of java.lang.Math.atan() methodimport java.lang.Math; class Gfg { // driver code public static void main(String args[]) { double a = Math.PI; System.out.println(Math.atan(a)); double c = 344.0; double d = 0.0; double e = -0.0; double f = 1.5; System.out.println(Math.atan(c)); // Input positive zero // Output positive zero System.out.println(Math.atan(d)); // Input negative zero // Output negative zero System.out.println(Math.atan(e)); System.out.println(Math.atan(f)); }} |
Output:
1.2626272556789115 1.5678893582391513 0.0 -0.0 0.982793723247329
