I am new to sagemath.
I followed the steps for installing sagemath 9.6 from:
sagemanifolds[DOT]obspm[DOT]fr/install_ubuntu[DOT]html
However, while testing out the included functions, I noticed that I do not have any height functions:
height(); local_height(); global_height(); archimedean_local_height(); non_archimedean_local_height();
etc.
How do I add these missing functions?
