微小浮点值(只读)。
浮点数可以与零相差的最小值。
采用以下规则:
- 任何值 + Epsilon = 任何值
- 任何值 - Epsilon = 任何值
- 0 + Epsilon = Epsilon
- 0 - Epsilon = -Epsilon
介于任何数字与 Epsilon 之间的值会产生任意数字,因为存在
截断误差。
另请参阅:Mathf.Approximately。
using UnityEngine;
public class Example : MonoBehaviour { // Compares two floating point numbers and return true if they are the same number. // See also Mathf.Approximately, which compares floating point numbers so you dont have // to create a function to compare them.
bool isEqual(float a, float b) { if (a >= b - Mathf.Epsilon && a <= b + Mathf.Epsilon) { return true; } else { return false; } } }