The following documentation is available in the form of .html files:
The HEALPix Primer
HEALPix Facility Installation Guidelines
HEALPix Fortran Facilities User Guidelines
HEALPix Fortran90 Subroutines Overview
HEALPix IDL Facilities Overview
HEALPix C Subroutines Overview
HEALPix C++ Facilities and Subroutines Overview
HEALPix Java Overview
HEALPix Python routines
The PDF documentation can be read
here
.
The complete documentation can also be seen at
HEALPix Documentation web page
HEALPix Homepage
See
HEALPix support
for any question or problem.