One note about your code, you should use expr.func, not expr.__class__. Right now, they are generally the same, but we reserve the right to make them differ at some point, in case it becomes convenient to make expressions rebuild with something other than their literal class.
Aaron Meurer On Wed, Sep 4, 2013 at 11:26 AM, Saullo Castro <[email protected]> wrote: > Today I've done this so far.... it works very well for many test cases I've > played here: > > https://gist.github.com/saullocastro/6433919#file-test_variational_calculus-py > > Tomorrow or on Friday I will implement the integration by parts which is > very typical to get the Euler-Lagrange equations.... > > > Thank you for the support! > Saullo > > > 2013/9/4 Sergey B Kirpichev <[email protected]> >> >> On Wed, Sep 04, 2013 at 12:20:55PM +0200, Saullo Castro wrote: >> > in this Issue 3198: implement Euler-Lagrange equations, did you >> > implement this kind of operator? >> >> The left-hand side of Euler-Lagrange equation is a functional >> derivative for the functional of some (well known) form. >> >> > Is this pull request already merged? >> >> No, AFAIK. You can check the current status of the pr. >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "sympy" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/sympy/cvOjJdEWprM/unsubscribe. >> To unsubscribe from this group and all its topics, 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/sympy. >> For more options, visit https://groups.google.com/groups/opt_out. > > > -- > You received this message because you are subscribed to the Google Groups > "sympy" 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/sympy. > For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "sympy" 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/sympy. For more options, visit https://groups.google.com/groups/opt_out.
