Mathf.Epsilon

Description

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。

See Also: 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 &amp;&amp; a <= b + Mathf.Epsilon)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}