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Re: rounding problems - Mailing list pgsql-general

From Douglas McNaught
Subject Re: rounding problems
Date
Msg-id 5ded07e00805130912q23835e25x83c4780d9f431e7@mail.gmail.com
Whole thread Raw
In response to Re: rounding problems  (Justin <justin@emproshunts.com>)
List pgsql-general
2008/5/13 Justin <justin@emproshunts.com>:

>  Your saying in Excel,  Multiplication is not  Commutativity???  that sends
> shudders  down my back

The word you want in this case is "associative".  Since floating point
math is not exact, sometimes the associativity (and other) properties
of some operations are not preserved.  This is true for floating point
in general, not just Excel.

-Doug

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