Floor behaving weirdly

[sandbergGJZSN]

Just found out that this maxscript:

floor(100.0 * 1.05)

Gives the result:

104.0

I'm just curious if i misunderstand something, but i thought it would return 105.0.

Anyone know why it behaves like this?

[istan · Accepted solution]

https://help.autodesk.com/view/MAXDEV/2021/ENU/?guid=GUID-B57EA575-DCDE-42F5-9D30-88E3EB41F350 

math is internally in float.. so of course there is some sort of inaccuracy in every calculation.. even with double calc, the result 105.0 will not be exact.. see: https://en.wikipedia.org/wiki/IEEE_754 

[sandbergGJZSN]

Thanks for the reply!

I won't trust printed floats ever again xP

[istan]

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@sandbergGJZSN wrote:

Thanks for the reply!

I won't trust printed floats ever again xP

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therefore we developers invented the integer values 😁