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Stoex

scientific notation

3 posts in this topic

I am doing some simple math operations, subtracting numbers from each other and in the column

when the last subtraction should equal 0, I am getting scientific notation.  All other numbers in the sequence of subtractions return numbers.

anything of help would be appreciated.

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#2 ·  Posted (edited)

 

when the last subtraction should equal 0, I am getting scientific notation.

Are you saying you get a value very close to zero? Why are you surprised by floating-point behavior? Either scale your inputs to make them fit in the integral domain, either allow for some inaccuracy.

In all cases there is nothing there specific to AutoIt.

Edited by jchd

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Stoex,

You are almost certainly falling foul of the well-known "floating point arithmetic" problem - see here for a very good explanation (it deals with Python, but the principles are the same for any language). So nothing to do with AutoIt - and a solution will be obvious once you understand why it happens. ;)

M23


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