java.lang.Math.tanh()
Description
- 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.
- If the argument is positive infinity, then the result is +1.0.
- If the argument is negative infinity, then the result is -1.0.
Most of the methods of the Math class is static and the tanh() method is no exception. Thus don’t forget that in order to call this method, you don’t have to create a new object instead call it using Math.tanh(x).
Method Syntax
public static double tanh(double x)
Method Argument
| Data Type | Parameter | Description |
|---|---|---|
| double | x | The number whose hyperbolic tangent is to be returned. |
Method Returns
The Math.tanh() method returns the hyperbolic tangent of the argument x.
Compatibility
Requires Java 1.5 and up
Java Math tanh() Example
Below is a java code demonstrates the use of tanh() method of Math class. The example presented might be simple however it shows the behavior of the tanh() method.
package com.javatutorialhq.java.examples;
import java.util.Scanner;
/*
* This example source code demonstrates the use of
* tanh() method of Math class
*/
public class MathTanhExample {
public static void main(String[] args) {
// Ask for user input
System.out.print("Enter a value:");
// use scanner to read the console input
Scanner scan = new Scanner(System.in);
// Assign the user to String variable
String s = scan.nextLine();
// close the scanner object
scan.close();
// convert the string input to double
double value = Double.parseDouble(s);
// get the hyperbolic tangent of the user input
double coshValue = Math.tanh(value);
System.out.println("Hyperbolic Tangent of " + s + " is " + coshValue);
}
}
The above java example source code demonstrates the use of tanh() method of Math class. We simply ask for user input and we use the Scanner class to parse it. Since we have used the nextLine() method to get the console value, and the return data type is String thus we have used the Double.parseDouble() to transform it into double. We have to convert it first to double because the tanh() method accepts double method argument.
Sample Output
Below is the sample output when you run the above example.
