Good afternoon. I work with theoretical physics, and I build Einstein's Tensor from an extensive metric. So I decided to use list comprehension in order to make the construction of curvature tensors simpler. However, after finding the Einstein tensor, I need to work with some components separately, but I am not able to return the list in components of a PseudoRiemannian metric. Is there any possibility to do this conversion?
Thank you in advance for your attention.
