In the share directory is a package written many years ago, gamalg, to
do gamma matrix algebra. This seems to be broken, to wit, trying the
gam.dem package,
(c1) loadfile(gam.dem,>,share);
Error: ((MNCTIMES) | $gam| |$dem|) cannot be coerced to a string.
Fast links are on .........
Alternatively,
(c1) loadfile(gamalg,>,share);
Loading gamalg.lsp
Finished loading gamalg.lsp
(D1) done
(c2) tr(p,q);
Error: (MLIST SIMP) is invalid as a function.
Fast links are on:.......
Did this package work at some time? I wrote a gamma algebra package to
use with commercial Macsyma for a specific problem. It was naive, but it
worked in a very large calculation (Phys. Rev. Lett. 79, 18 (1997)). It
would be nice if maxima had a working gamma algebra package and it seems
reasonable to look at the prior work first as it seems to have many more
features ( The source code is in share2. ) I am willing to do this, but
before doing so find out if anyone is aware of bugs in this program as
it stands now. A search of groups in google produced no information.
Thanks,
Dick Fell