C# Atanh()

The Math.Atanh() method returns the inverse hyperbolic tangent (hyperbolic arctangent) of a specified number. The inverse hyperbolic tangent is the value whose hyperbolic tangent is the input number.

Syntax

Math.Atanh(value);

Parameters:

• value: A double-precision floating-point number in the range -1 to 1, representing the hyperbolic tangent value.

Return value:

The Math.Atanh() method returns the inverse hyperbolic tangent of the given value as a double.

It returns:

• NaN (Not a Number) if the value is less than -1 or greater than 1.
• NegativeInfinity if the value is exactly -1.
• PositiveInfinity if the value is exactly 1.

Example: Basic Usage of Math.Atanh()

The following example demonstrates the basic usage of Math.Atanh():

using System;

class Program
{
  static void Main()
  {
    double value = 0.5;
    double result = Math.Atanh(value);
    Console.WriteLine($"Atanh({value}) = {result}");
  }
}

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This will output:

Atanh(0.5) = 0.5493061443340548

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Codebyte Example

In this example, different values are passed to Math.Atanh() to observe how the result changes:

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