It's not pre-coded. You can use the tools of
https://camb.readthedocs.io/en/latest/ScalEqs.html
to relate to CAMB synchornous-gauge variables, e.g. I think you basically want A(t) (acceleration) in the gauge in which h(t)=0 (perturbation to scale factor), and subtract the acceleration you get from the Poisson equation.
https://camb.readthedocs.io/en/latest/ScalEqs.html
to relate to CAMB synchornous-gauge variables, e.g. I think you basically want A(t) (acceleration) in the gauge in which h(t)=0 (perturbation to scale factor), and subtract the acceleration you get from the Poisson equation.
Statistics: Posted by Antony Lewis — May 02 2024