The java.lang.StrictMath.tanh() method returns the hyperbolic tangent of a double value. The hyperbolic tangent of x is defined to be (ex - e-x)/(ex + e-x).It include these cases −
Following is the declaration for java.lang.StrictMath.tanh() method
public static double tanh(double x)
x − This is the number whose hyperbolic tangent is to be returned.
This method returns the hyperbolic tangent of x.
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The following example shows the usage of java.lang.StrictMath.tanh() method.
package com.tutorialspoint; import java.lang.*; public class StrictMathDemo { public static void main(String[] args) { double d1 = (90*Math.PI)/180 , d2 = 0.0; double d3 = (1.0)/(0.0), d4 = -(1.0)/(0.0); // returns the hyperbolic trigonometric tangent of an angle. double tanhValue = StrictMath.tanh(d1); System.out.println("hyperbolic tangent of d1 = " + tanhValue); tanhValue = StrictMath.tanh(d2); System.out.println("hyperbolic tangent of d2 = " + tanhValue); tanhValue = StrictMath.tanh(d3); System.out.println("hyperbolic tangent of d3 = " + tanhValue); tanhValue = StrictMath.tanh(d4); System.out.println("hyperbolic tangent of d4 = " + tanhValue); } }
Let us compile and run the above program, this will produce the following result −
hyperbolic tangent of d1 = 0.9171523356672744 hyperbolic tangent of d2 = 0.0 hyperbolic tangent of d3 = 1.0 hyperbolic tangent of d4 = -1.0