# Dealing with invalid float numbers

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Hello once again,I'm trying to come up with a way to deal with invalid float numbers. Specifically, the ones you get when you try to perform an operation that exceeds a floating-point numbers precision, like dividing one by 19000. I end up with a number that looks like this:

4.84730974309E-005
When I encounter this number, I just want to set it to zero - no reason for something like that to spam up my file, lol. However, code like this doesn't work:
`if(is_nan(\$percent)  \$percent = 0;`

Neither does this:

`if(is_infinite(\$percent)  \$percent = 0;`

Or this:

`if(!is_finite(\$percent)  \$percent = 0;`

Is there any way I can conveniently detect and remove these numbers?

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None of those work, because the number is a number, it's not infinite, and it is finite. That number is shorthand for this:0.0000484730974309You are dealing with very small numbers, but they are still finite numbers. So, you can set a threshold. If the number is smaller then the threshold, you can set it to zero.

`\$threshold = 0.0001;if (\$percent < \$threshold)  \$percent = 0;`