On Sun, Mar 29, 2009 at 7:56 PM, Ondrej Certik <ond...@certik.cz> wrote: > >>> But personally, I find the variants for specifying variables, and >>> their associated ranges, somewhat confusing. I can never quite >>> remember if the x is needed or not, and then does it take the form: >>> x,a,b or (x,a,b)? >> >> I now think (x,a,b) should always be *supported*, though it shouldn't >> be the only option. > > If you mean this: > > integrate(exp(-x**2), (x, -oo, oo)) > > then that'd be awesome.
That is what I mean. > As to the derivative, why not to just use .diff()? I don't understand the question. > Also how about the series expansion, will you continue using > taylor, or will you use > > sin(x).series(x, 0, 5) > > like ginac? That way, the Sage and sympy's syntax would converge a bit. I don't know. In retrospect I like "series" better since it explains what one gets whereas "Taylor" is just the name of somebody. > > In my experience it's not such a big deal to have a bit different > notation, as for example in our lambdify module in sympy: > > http://git.sympy.org/?p=sympy.git;a=blob;f=sympy/utilities/lambdify.py;h=312d0486dcbde5b8b7a7eb0659377dc9a1d7a9a0;hb=HEAD > > we convert between python math module, numpy, mpmath and sympy and all > 4 modules have a bit different naming scheme. It works pretty fine. > > I don't have an opinion, if it's better to support both taylor() and > series() in sympy or Sage, so that users don't have to think about it, > or if it's better to choose and stick to it. What do you think? I don't like removing things that have been in Sage for a while, since that will break lots of existing code. > > Ondrej > > P.S. I should upgrade the git on our server, since they already fixed > those ugly urls. > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send 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 -~----------~----~----~----~------~----~------~--~---
