[Octopus-devel] Documentation for symmetries in time propagation

[Xavier Andrade]

Hi all,

I am trying to use the symmetries to reduce the number of time
propagation and I noticed that the documentation for this part is
quite deficient. For example, for TDPolarizationWprime the variable
documentation is:

"Say you have a first symmetry operation (A) that takes you the first
axis (p1) to the second axis (p2), and then a second symmetry
operation (B) that takes you the second axis (p2) to the third (p3).
Then wprime = A^{-1} p3."

Can someone, who understands this part, improve the documentation?

Thanks,

Xavier