Unity Script Reference – Mathf.Epsilon

Mathf.Epsilon

static var Epsilon : float

Description

A tiny floating point value (Read Only).

The smallest value that a float can have different from zero.

With the following rules:

- anyValue + Epsilon = anyValue
- anyValue - Epsilon = anyValue
- 0 + Epsilon = Epsilon
- 0 - Epsilon = -Epsilon

A value Between any number and Epsilon will result in an arbitrary number due to truncating errors.

See Also: Mathf.Approximately

JavaScript

// 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.

function isEqual(a: float, b : float) {
    if(a >= b-Mathf.Epsilon && a <= b + Mathf.Epsilon)
        return true;
    else
        return false;
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    bool isEqual(float a, float b) {
        if (a >= b - Mathf.Epsilon && a <= b + Mathf.Epsilon)
            return true;
        else
            return false;
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def isEqual(a as single, b as single) as bool:
        if (a >= (b - Mathf.Epsilon)) and (a <= (b + Mathf.Epsilon)):
            return true
        else:
            return false