Le mercredi 7 février 2024 à 15:46:05 UTC+1, Dominic Steinitz a écrit : The example here https://sagemanifolds.obspm.fr/examples.html of
- Electromagnetism in Minkowski spacetime <https://nbviewer.jupyter.org/github/ernestyalumni/Gravite/blob/master/EMsage.ipynb> [ipynb <https://raw.githubusercontent.com/ernestyalumni/Gravite/master/EMsage.ipynb>] (Electromagnetic field 2-form from E and B, Maxwell equations, conserved current, Lorentz force, Poynting vector) Fails with the error in the title and in more detail below. For reference: this is discussed in the new thread https://groups.google.com/g/sage-support/c/yD6k655EWOA/m/3AMzKdpaAQAJ Besides, the question about the connection forms has been answered on https://ask.sagemath.org/ Eric. -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/6673df0f-7d05-43a8-a391-8d2a33866c01n%40googlegroups.com.
