[Haskell-cafe] floating point operations and representation

I am under the restriction that I need to write Haskell programs using Double which mimic existing C/C++ programs or generated data sets, and get the same answers. (It's silly, but take it as a given requirement.) If the C programs are using "log2", then I need "log2" in the Haskell, or else I run the risk of not producing the same answers.

Hey Jacob, Just to make life super simple, I packaged up a binding to the basic math.h library for Doubles. You can find the library here: http://hackage.haskell.org/cgi-bin/hackage-scripts/package/cmath For example, Prelude> Foreign.C.Math.Double.log10 5 0.6989700043360189 Prelude> log 5 / log 10 0.6989700043360187 Enjoy! -- Don