HEALPix IDL Facilities Overview
This document is an overview of the HEALPix IDL facilities.
Eric Hivon, Anthony J. Banday, Benjamin D. Wandelt, Frode
K. Hansen and Krzysztof M. Górski
Revision: Version 3.31; August 26, 2016
http://healpix.sf.net
Version 3.31, 2016-08-26