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The C# Math Cosh() method returns hyperbolic cosine of a value. The hyperbolic cosine of x is defined as:

Cosh

where e is an Euler's number.

In special cases it returns the following:

  • If the argument is NaN, the method returns NaN.
  • If the argument is PositiveInfinity or NegativeInfinity, the method returns PositiveInfinity.

Syntax

public static double Cosh(double arg);

Parameters

arg Specify the value.

Return Value

Returns the hyperbolic cosine of a value.

Example:

In the below example, Cosh() method is used to find out the hyperbolic cosine of a value.

using System;

class MyProgram {
  static void Main(string[] args) {
   Console.WriteLine(Math.Cosh(0));
   Console.WriteLine(Math.Cosh(2));
   Console.WriteLine(Math.Cosh(4));
  }
}

The output of the above code will be:

1
3.76219569108363
27.3082328360165

❮ C# Math Methods