On Tue, Jun 10, 2008 at 11:04 PM, mabshoff <[EMAIL PROTECTED]> wrote: > > Riccardo Gori wrote: >> Hello, >> > > Hi Riccardo, > > thanks for the bug report. I have forwarded it to sage-devel. > > Cheers, > > Michael >> In SAGE-3.0.2 with a Intel Mac OSX 10.5 I found the following bug: >> >> Trying to evaluate a sympy function gives a wrong result. With sympy in a >> python shell everything works well. >> >> To reproduce: >> >> sage: import sympy >> sage: sympy.sin(1.1) >> sin(1) >> sage: sympy.sin(float(1.2)) >> sin(1) >> sage: sympy.sin(1.3) >> sin(1.300000000000000044408920985) >> sage: sympy.sin(float(1.4)) >> sin(1.39999999999999991118215803) >> >> I didn't find a way to get a correct result even with float().
I created an issue for that: http://code.google.com/p/sympy/issues/detail?id=881 It's a serious bug. However, so far I cannot reproduce it nor in sympy, nor in sage: sage: import sympy sage: sympy.sin(float(1.1)) sin(1.10000000000000008881784197) sage: sympy.sin(1.1) sin(1.10000000000000008881784197) I'll dig further and fix this in the next release of sympy. Ondrej --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
