在C＃中， Exp(Single)是MathF类方法，用于将e提升为指定的幂。这里e是一个数学常数，其值约为2.71828 。
Syntax: public static float Exp (float x);
Here, x is the required number of type System.Single which specifies a power.
Return Type: It returns a number e raised to the power x of type System.Single.
笔记：
- 如果x等于NaN，则返回值为NaN 。
- 如果x等于PositiveInfinity，则返回值为Infinity 。
- 如果x等于NegativeInfinity，则返回值为0 。
范例1：
// C# Program to illustrate the
// MathF.Exp(Single) Method
using System;
class Geeks {
// Main Method
public static void Main()
{
// using the method
Console.WriteLine(MathF.Exp(7.0f));
Console.WriteLine(MathF.Exp(458.95f));
Console.WriteLine(MathF.Exp(9.487f));
Console.WriteLine(MathF.Exp(0.00f));
}
}
输出：
1096.633
Infinity
13187.18
1
范例2：
// C# Program to illustrate the
// MathF.Exp(Single) Method by
// taking NaN, PositiveInfinity
// and NegativeInfinity]
using System;
class Geeks {
// Main Method
public static void Main()
{
// Taking NaN
Console.WriteLine(MathF.Exp(Single.NaN));
// Taking PositiveInfinity
Console.WriteLine(MathF.Exp(Single.PositiveInfinity));
// Taking NegativeInfinity
Console.WriteLine(MathF.Exp(Single.NegativeInfinity));
}
}
输出：
NaN
Infinity
0