AIPS HELP file for XHELP in 31DEC18
As of Sat Mar 17 17:59:21 2018
XHELP: Verb-like to list information about any AIPS symbol
This verb has no input
Use: Displays hypertext help on a given subject in a suitable
World-Wide Web browser (normally Netscape). This intended
for more extensive documentation than that normally
available in AIPS help files.
The general form of the command is
where subject is a string that gives the subject for which
documentation is required. If there is no hypertext help
for the given tag but a corresponding help file exists
then the help file will be loaded into the browser as a
plain text file. If neither hypertext help nor
traditional AIPS help can be found for the subject or if
no subject is given then an index page will be loaded
that lists the help subjects available.
This command may not function on all host systems.
This command will use the environment variable $AIPS_BROWSER if
it is set. If not it will set AIPS_BROWSER=firefox.
1) To display the index page type
2) To display a document about mapping (should there be one)
3) To display the help file for IMAGR (including the explain
This assumes that there is no specific hypertext help for