On Thursday, March 13, 2014 7:29:40 PM UTC+4, brombo wrote: > > If you are talking about Lagrangian field theory the question is how do > you take a derivative with respect to the field and the gradient of the > field and not with respect to the position vector the field is a function > of. >
The docstring of euler_equation function has a trivial example of scalar field. There should not be any problems for more complex field (e.g. for electrodynamics). -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/ffb3b43b-fd2c-4e7b-9c47-372d43e441c6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
