Math error with a big value

General TouchDesigner Discussion
1

Hi! I get a wrong result with from math with a big number: (

laskuvirhe
laskuvirhe1351×572 99.4 KB

Does this have something to do with data types or what?

Same happens when I use different operators (math4 adds -1):

laskuvirhe2
laskuvirhe21249×721 70.5 KB

2

CHOPs use 32-bit floats internally, which run out of precision around ~16M to perfectly represent integers. After that it’s going to be approximations.

3

I see. Thank you!