Question Debug.Log(2000.0f * 000.1f); is 200

Debug.Log(2000.0f * 000.1f);

Someone help me out here.
Why is that.

 

0.1 is 10%. What were you expecting?

 

lol yeah. sorry I misread/missed the misplaced decimal point: XD more coffee required

 

Now that you have had your coffee, don't forget about floating point imprecision:

Code (csharp):

1. // @kurtdekker: don't forget about floating point imprecision
2. using UnityEngine;
3. public class FloatingPointImprecision : MonoBehaviour
4. {
5.     void Start ()
6.     {
7.         float a = 2000.0f;
8.         float b = 0.1f;
9.         float product = (a * b);
10.         float answer = 200;
11.  
12.         Debug.Log( "a = " + a);
13.         Debug.Log( "b = " + b);
14.         Debug.Log( "product of a*b = " + product);
15.         Debug.Log( "answer = " + answer);
16.         Debug.Log( "does product equal answer? " + (product == answer));
17.         Debug.Log( "does a*b equal answer? " + ((a * b) == answer));
18.     }
19. }

Your mileage almost certainly will vary. Choose an epsilon term and know it well.

 

It's posts like this that make me glad I do Stupid mistakes.

I would <3 this twice if I could