Mark H. Harris <harrismh777 <at> gmail.com> writes: > > On Thursday, February 27, 2014 10:26:59 PM UTC-6, Chris Angelico wrote: > > > Create Decimal values from strings, not from the str() of a float, > > which first rounds in binary and then rounds in decimal. > > > > Thanks Chris... another excellent point... ok, you guys have about convinced me (which is spooky) but, > hey, I'm teachable... what is the best strategy then? > > If you get a chance, take a look at the dmath.py code on: > > https://code.google.com/p/pythondecimallibrary/ > > I got the repository working correctly for me, and the files can be viewed on-line ... its a long script, but > not that hard to look through because all the functions pretty much work the same... when you've seen one > converging series function in python you've seen them all! > > Thanks again, Chris. >
Hi Mark, I quickly skimmed through your code and I don't think there is a need for your D() function at all. I thought it was a class adding some extra functionality to Decimal (that's because you used a capital letter for its name), but now I realized that it's just a function returning a Decimal from the string representation of its argument. Since by now, I guess, we all agree that using the string representation is the wrong approach, you can simply use Decimal instead of D() throughout your code. Best, Wolfgang -- https://mail.python.org/mailman/listinfo/python-list
