Hi, I was just wondering that - after two one year, is this problem solved now?
-Shawn On Thursday, August 16, 2012 8:53:11 AM UTC-4, rochabm wrote: > > Hi everyone, > > I'm working on a simple code to calculate some tensors I need to use in > continuum mechanics. > In one part of my code I need to compute the derivatives of a function > with respect to a second order tensor, which gives me a 2nd order tensor > (let's say S). > Then I need the derivatives of S with respect to a 2nd order tensor, which > gives me a 4th order tensor. > I wrote a code using the diff() function and nested lists to represent the > 2nd and 4th order tensors. > > I found that there is a Matrix class in sympy and I decided to use it for > my 2nd order tensors since I can do some nice operations with the Matrix. > Here comes my question: is there something to handle a 4th order tensor, > better than a pure python nested list? > > That's it. > Thanks. > Best regards, > Bernardo M. Rocha > -- 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 sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
