C＃中的MathF.Tanh()方法与示例

Math.Tanh(Single)方法是内置的MathF类方法，该方法返回给定单值参数的双曲正切值。

Syntax: public static float Tanh (float x);
Here, x is the number whose hyperbolic tangent is to be returned and type of this parameter is System.Single.

返回值：此方法返回System.Single类型的x的双曲正切值。如果x等于NegativeInfinity或PositiveInfinity，则返回PositiveInfinity。如果x等于NaN，则返回NaN。

下面的程序说明了上述方法的用法：

范例1：

// C# program to illustrate the
// MathF.Tanh(Single) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main(String[] args)
    {
  
        float num1 = 70.0f, num2 = 0.0f, num3 = 1.0f;
  
        // It returns the hyperbolic tangent
        // of specified angle in radian
        float tanhvalue = MathF.Tanh(num1);
        Console.WriteLine("The Tanh of num1 = " + tanhvalue);
  
        tanhvalue = MathF.Tanh(num2);
        Console.WriteLine("The Tanh of num2 = " + tanhvalue);
  
        tanhvalue = MathF.Tanh(num3);
        Console.WriteLine("The Tanh of num3 = " + tanhvalue);
    }
}

输出：

The Tanh of num1 = 1
The Tanh of num2 = 0
The Tanh of num3 = 0.7615942

范例2：

// C# praogram to illustrate the
// MathF.Tanh(Single) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
          
        float num1 = (90 * (MathF.PI)) / 180;
          
        // calling result() method
        result(num1);
        result(Single.NaN);
        result(Single.NegativeInfinity);
        result(Single.PositiveInfinity);
    }
  
    // defining result() method
    public static void result(float value)
    {
  
        // using the method
        float result = MathF.Tanh(value);
  
        // Display the value
        Console.WriteLine("Tanh({0}) will be {1}",
                                   value, result);
    }
}

输出：

Tanh(1.570796) will be 0.9171523
Tanh(NaN) will be NaN
Tanh(-Infinity) will be -1
Tanh(Infinity) will be 1