On Sat, Dec 13, 2008 at 10:11 AM, Thomas Kahle <tom...@gmx.de> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all, > > Is this the right place for suggestions for the function "solve" ?
Yes. Thanks. I've submitted your bug report to the sage trac server: http://trac.sagemath.org/sage_trac/ticket/4786 and we are now tracking this there. -- William > > 1) The docstring has a typo : "... solve an equation of system ..." > Should be an "or" here. > > 2) The section > " solution_dict = True -- return a list of dictionaries containing the > solutions. " > made me think that solution_dict defaults to True which is not the case. > Maybe this could be made more clear. > > 3) 'solution_dict = True' fails when only a single univariate equation > is given. The solution is then not a list of lists and the conversion to > dictionary fails: > > sage: var('a') > a > sage: solve ([a^2-1],a,solution_dict=True) > - > --------------------------------------------------------------------------- > AttributeError Traceback (most recent call last) > > /home/tom/<ipython console> in <module>() > > /usr/local/sage/local/lib/python2.5/site-packages/sage/calculus/equations.pyc > in solve(f, *args, **kwds) > 1436 sol_list = string_to_list_of_solutions(a) > 1437 if 'solution_dict' in kwds and kwds['solution_dict']==True: > - -> 1438 sol_dict=[dict([[eq.left(),eq.right()] for eq in > solution]) for solution in sol_list] > 1439 return sol_dict > 1440 else: > > AttributeError: 'SymbolicVariable' object has no attribute 'left' > > > Thanks for your great work. > Thomas > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.9 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iEYEARECAAYFAklD+tcACgkQrpEWPKIUt7PC/wCaApQxRJv5W+XEMyHOyehqHv0I > lyQAn0XYSvy5YmWVcLzoP0BPYvqFi09l > =LWVH > -----END PGP SIGNATURE----- > > > > -- 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 -~----------~----~----~----~------~----~------~--~---
