The
java.lang.StrictMath.tanh() method is used to return the
hyperbolic tan of a double value passed as parameter to the function. The
hyperbolic tan of x is defined by the formula where e denotes the
Euler's number.
Syntax:
public static double tanh(double x)
Parameters: The function accepts a single parameter
x of double type and refers to the value whose hyperbolic tangent equivalence is to be returned.
Return Values: This method returns a double value which is the hyperbolic tangent of
x. The absolute value of exact tanh never exceeds 1. The following cases are considered:
- The function returns NaN if the argument is NaN.
- The function returns +1.0 and -1.0 for positive infinity and negative infinity respectively.
- The function returns zero with the same sign as the argument if the argument is zero
Examples:
Input: 0.7853981633974483
Output: 0.6557942026326724
Input: 4.0
Output: 0.999329299739067
Below programs illustrate the
java.lang.StrictMath.tanh() method:
Program 1:
Output:
Hyperbolic tan of 0.7853981633974483 = 0.6557942026326724
Program 2:
