> On Mon, Nov 1, 2010 at 4:19 AM, Bj Raz <whitequill...@gmail.com> wrote: >> On Fri, Oct 29, 2010 at 1:02 AM, Chris Rebert <c...@rebertia.com> wrote: >>> On Thu, Oct 28, 2010 at 9:41 PM, Bj Raz <whitequill...@gmail.com> wrote: >>> > I am working with differential equations of the higher roots of >>> > negative >>> > one. (dividing enormous numbers into other enormous numbers to come out >>> > with >>> > very reasonable numbers). >>> > I am mixing this in to a script for Maya (the final output is >>> > graph-able as >>> > a spiral.) >>> > I have heard that Sage, would be a good program to do this in, but I'd >>> > like >>> > to try and get this to work in native python if I can. >>> > The script I am trying to port to Python >>> > is; http://pastebin.com/sc1jW1n4. >>> >>> Unless your code is really long, just include it in the message in the >>> future. >>> So, for the archive: >>> indvar = 200; >>> q = 0; >>> lnanswer = 0; >>> for m = 1:150 >>> lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m)) ; >>> q(m+1) = q(m)+ ((-1)^m) * exp(lnanswer); >>> end >>> lnanswer >>> q On Mon, Nov 1, 2010 at 1:23 AM, Bj Raz <whitequill...@gmail.com> wrote: > Simply out of curiosity is there a way to force python to print more then 16 > places from the decimal? For better accuracy.
(1) Please don't top-post. (http://en.wikipedia.org/wiki/Top-post ) (2) The underlying double-precision floating-point number only has ~16 decimal digits of precision, so it's pointless to print out "further" digits. (3) If you actually need more than 16 decimal places, use something like the `decimal.Decimal` datatype: http://docs.python.org/library/decimal.html Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
