Parameters

value

A double that represents an angle measured in radians.

Returns

A double containing the value of the hyperbolic tangent of value. If value is equal to double.NegativeInfinity, returns -1. If value is equal to double.PositiveInfinity, returns 1. If value is equal to double.NaN, returns double.NaN.

Remarks

Note: Multiply by pi/180 to convert degrees to radians.

Example

The following example demonstrates using the Math.Tanh(double) method.

C# Example

using System;

public class MathTanhExample
{

   public static void Main()
   {

      Double d1 = Math.Tanh(0);
      Double d2 = Math.Tanh(Math.PI);
      Console.WriteLine("Math.Tanh(0) returns {0}", d1);
      Console.WriteLine("Math.Tanh(Math.PI) returns {0}", d2);

   }

}

The output is

Math.Tanh(0) returns 0
Math.Tanh(Math.PI) returns 0.99627207622075

Requirements

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0