On Sat, Aug 22, 2009 at 1:21 PM, Fredrik Johansson < fredrik.johans...@gmail.com> wrote:
> > On Sat, Aug 22, 2009 at 9:50 PM, William Stein<wst...@gmail.com> wrote: > > On my laptop (OS X 64-bit Sage-4.1.1 and Mathematica 7.0): > > > > Test 1 -- sage (=mpfr) wins > > > > SAGE: > > sage: time a = N(pi, 5000000) > > CPU times: user 10.31 s, sys: 0.94 s, total: 11.26 s > > Wall time: 11.73 s > > > > MATHEMATICA: > > In[1]:= Timing[N[Pi, 5000000]]][[1]] > > Out[1]= 11.3116 > > I think this is wrong; Sage's N counts bits by default while > Mathematica's N counts digits. You're right. Thanks for the correction. > On sage.math I get: > > In[1]:= Timing[N[Pi, 5000000]][[1]] > Out[1]= 13.21 > > sage: time a = N(pi, digits=5000000) > CPU times: user 28.90 s, sys: 0.04 s, total: 28.94 s > Wall time: 28.96 s > > However, mpmath is (barely) faster than Mathematica: > > sage: from sage.libs.mpmath.all import pi as p > sage: time a = p(dps=5000000) > CPU times: user 12.56 s, sys: 0.14 s, total: 12.70 s > Wall time: 12.70 s Nice! > > > Fredrik > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
