在C#中表达数学无穷大

Question

是否有可能在C#中表达(数学)无穷大,正面或负面？如果是这样,怎么样？

Answer 1

使用PositiveInfinity和NegativeInfinity常量:

double positive = double.PositiveInfinity;
double negative = double.NegativeInfinity;

Answer 2

double.PositiveInfinity

double.NegativeInfinity

float zero = 0;

float positive = 1 / zero;
Console.WriteLine(positive);    // Outputs "Infinity"

float negative = -1 / zero;
Console.WriteLine(negative);    // Outputs "-Infinity"

Answer 3

public const double NegativeInfinity = -1.0 / 0.0;
public const double PositiveInfinity = 1.0 / 0.0;

Answer 4

是的,检查的类型的常量的值float和double,如:
float.PositiveInfinity
float.NegativeInfinity
这些值都符合IEEE-754,所以你可能想看看它是如何工作究竟,所以你会知道,当同时进行计算,你如何能得到这些值.更多信息在这里.