On 9/19/07, Hamish <[EMAIL PROTECTED]> wrote: > > Am I too old? Adding logs instead of multiplying (And subtracting instead of > dividing) was how I learnt to do multiplication adn division before you werte > allowed to use calculators in school exams (Early 1980's in NZ :)
http://en.wikipedia.org/wiki/Sliderule :) > Come to think of it, would it be more efficient (Thinking of time & logic vs > table lookup space) to use a lookup table to caluclate log/alog like using > Eton tables in the old days? Or actually calculating it? For regular arithmetic, we want to compute it directly to maximize accuracy. I think. But if you're doing lots of products, it may be better to sum lots of logs instead, especially when you just want an approximation. -- Timothy Normand Miller http://www.cse.ohio-state.edu/~millerti Open Graphics Project _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
