The java.lang.StrictMath.tan() is an in-built function in Java which returns the trigonometric tangent of an angle.
Syntax:
public static double tan(double ang)
Parameters: This function accepts a single parameter ang which is a double variable representing an angle (in radians) whose trigonometric tangent is to be returned by the function.
Return Value: This method returns the tangent of the angle passed as argument to the function. It gives rise to special cases:
- The method returns NaN if the argument is NaN or an infinity.
- The result is zero with the same sign as the argument, if the argument is zero.
Examples:
Input : ang = 0.5235987755982988(30 degree) Output : 0.5773502691896257 Input : ang = 0.7853981633974483(45 degree) Output : 0.9999999999999999
Below programs illustrate the java.lang.StrictMath.tan() function in Java:
Program 1:
// Java Program to illustrate // StrictMath.tan() function  import java.io.*;import java.math.*;import java.lang.*;  class GFG {    public static void main(String[] args)    {          double ang = (60 * Math.PI) / 180;          // Display the trigonometric tangent of the angle        System.out.println("tangent value of 60 degrees : "                           + StrictMath.tan(ang));    }} |
Output:
tangent value of 60 degrees : 1.7320508075688767
Program 2:
// Java Program to illustrate // StrictMath.tan() function  import java.io.*;import java.math.*;import java.lang.*;  class GFG {    public static void main(String[] args)    {          double ang = 77.128;        // Convert the angle to its equivalent radian        double rad = StrictMath.toRadians(ang);          // Display the trigonometric tangent of the angle        System.out.println("tangent value of 77.128 degrees : "                           + StrictMath.tan(rad));    }} |
Output:
tangent value of 77.128 degrees : 4.376055350774854
Reference: https://docs.oracle.com/javase/8/docs/api/java/lang/StrictMath.html#tan()
