I searched the forums for similar questions to this (and there are a few) but none were quite the same.
I have maxima version 5.36.0 and gnuplot version 4.6.2-3 installed on a dedicated server running CentOS Linux release 7.2.1511 (Core) (x86_64) (64 bit version).
Maxima is working correctly on the server:
[xxxxx@xxxxx ~]# maxima
Maxima 5.36.0 http://maxima.sourceforge.net
using Lisp GNU Common Lisp (GCL) GCL 2.6.9
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) expand ((x + y)^6);
6 5 2 4 3 3 4 2 5 6
(%o1) y + 6 x y + 15 x y + 20 x y + 15 x y + 6 x y + x
(%i2) bug_report ();
Please report bugs to:
http://sourceforge.net/p/maxima/bugs
To report a bug, you must have a Sourceforge account.
Please include the following information with your bug report:
-------------------------------------------------------------
Maxima version: "5.36.0"
Maxima build date: "2016-06-14 08:29:37"
Host type: "x86_64-unknown-linux-gnu"
Lisp implementation type: "GNU Common Lisp (GCL)"
Lisp implementation version: "GCL 2.6.9"
-------------------------------------------------------------
The above information is also reported by the function 'build_info()'.
(%o2)
(%i3)
GNUPlot is also running on the server correctly (by that I mean it will plot a graph from command line and save it to a file).
I am also running moodle version 2.9.1 with STACK version 3.5.
When I run the healthcheck script I get the following results (summarized):
- Check LaTeX is being converted correctly
- Maxima configuration file - Trying to automatically write the Maxima configuration file.
- CAS result - Warning, empty result! - unpack_raw_result: completely empty result was returned by the CAS.
- Errors - CAS failed to return any evaluated expressions. Please check your connection with the CAS.