On Thu, Oct 30, 2014 at 5:23 PM, <[email protected]> wrote: > Dear Dr. William, > Thanks for your attention, but what you stated is not really my problem.
Oh, sorry, it is my problem. It's hard for me to help you if you don't provide code that 100% trivially works until the point where you have trouble. > Since the code above is just a part of my whole code, the software also does > not reflects such 'NameError' to me. Moreover, as I stated, it even works > without any errors when A[t] equals zero. By using 'A_elements_dict', I just > want to illustrate that 'A' is a sparse matrix, which its non-zero elements > are determined by a dictionary, and are linear terms of 't'. > What I (maybe!) need to know is > 1) Why this error raised at all, since (despite usual) sage does not provide > any more description for the error. > 2) For such an ODE systems, is ode_solver() an appropriate choice? > I hope I could've stated what I mean!! Thank you again, > Yours Truly, > SMH > > -- > You received this message because you are subscribed to the Google Groups > "sage-support" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sage-support. > For more options, visit https://groups.google.com/d/optout. -- William Stein Professor of Mathematics University of Washington http://wstein.org -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
