Here is a list of all related documentation pages:

Compiling and installing SHTns
Spatial data layouts and grids used by SHTns
Spherical Harmonics storage and normalization
Vector Spherical Harmonics as implemented in SHTns
Optimizations implemented in SHTns
Speed and Accuracy
Using SHTns in a C program
Using SHTns with Fortran
Loading and saving config (or plans)
Using SHTns with Python
Using SHTns with Java
Using SHTns with GPU (nvida and AMD)
License	CeCILL Free Software License Agreement
Deprecated List