koobas.hobune.stream
Problem is not reproducible or outdated
Why say Unity that 320* (1 / 320) = 0?
When I run the code below, I got this "Answer is 0" while it have to be 1. Can anybody tell me how to fix this? Thanks in advance. Code: Debug.Log("Answer is " + 320* (1 / 320));
Even when I use this code, the answer is still 0 Code:` float y = 320 * (1 / 320); Debug.Log("Answer is " + y);`
To actually make it work you gotta convert the "1" must be a float, it doesn't matter if the "320" multiplying is float or not. So the correct form is:
Debug.Log("Answer is " + 320 * (1f/320));
If "1/320" is not a float, you will get a integer result (rounded if necessary), which is what you were getting there:
1/320 = 0.0... which rounded to integer = 0, which multiplied by anything gives you 0
@allenallenallen , you were nearly right !
Debug.Log( "Answer is " + 320 * ( 1 / (float) 320 ) ); // OR
//Debug.Log( "Answer is " + 320 * ( (float) 1 / 320 ) );
Other possibility :
Debug.Log( "Answer is " + 320 * ( 1 / (float) 320f ) );
(float) ( 1 / 320 ) ) converts the result of the integer division (0) to a floating value : 0.0; while ( 1 / (float) 320 ) will give a floating result of the floating division 1/320.0
Because you didn't specify it to be a float so it automatically thinks it's an integer.
320 x (1/320) = 320 x 0 = 0
If you want this to work the way you wanted it to:
Debug.Log("Answer is " + 320 * (1f/320)); // C# script, not sure about JS
Edited: This one works now.
Thank for answering so fast! But unfortunately it doesn`t work the answer is still 0.
Nope, your code doesn't work :/ it still outputs zero
To add syntax highlighting, you highlight your code and then click on the 101010 button.
And I tried my own code and didn't work, but I found a way to make it work.
Debug.Log("Answer is " + 320 * (1f / 320));
Just add 'f' to either the 1 or 320 which would mark that number as a float and force the calculation answer to be a float.
Thank you allenallenallen now it works! :) But if I click the 101010 button, the only I get is: Debug.Log("No syntax highlighting");
You should try like this:
Debug.Log("Answer is " + 320.0f * (1.0f/320.0f));
Specifying f ensures that the number should be treated as a float. So it will preserve the remaining part.
Hope it helps!
@Demonicdaron, i personally prefers to keep numbers in a same number system when being manipulate to avoid unusual conditions (e.g., loss of precision) but you are possibly correct that it may not necessary for some cases.
This likely occurs because floats attempt to round themselves off to be faster and more efficient, but rounding will obviously cause some miscalculations; hence the name floating point precision errors. You could try using doubles instead of floats, or rewriting your statement to (320 * 1) / 320;
