I recently started using Sage Manifolds, and was wondering if it was possible to define tensor expression independent of basis. For example, I am working with some quantum field theory, and am trying to define the following tensor
U_mu=partial_mu (psi)/(sqrt(partial_nu(psi) nabla^nu (psi)) where psi is a scalar field. I want this to be valid independent of the choice of basis. -- 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 sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
