Contributed code (Was Re: [Maxima] Teaching)



"Nikolaos I. Ioakimidis" <ioakimidis@otenet.gr> writes:

> Please, permit me to add that, from the opposite side,
> the LODE2 command is now present in Maxima (it is!,
> related comments by Vadim Zhitnikov, many sincere
> thanks for his work and recent comments too), which
> is not present in the Reference Manuals. The LODE
> package was prepared in MIT by S. Watanabe in
> 1983 and it's also useful in solving odes.

It is defined in diffequations/pmain.mac and (as the name of the file
suggests) it seems to dispatch the actual solving to other files.
>From the end of the file:

ldf0(i):=block([],if ldsw[0,i]#y then (ldsw[0,i]:y,
   if i= 2 then load(pconfl) else
   if i= 3 then load(phypgm) else
   if i= 5 then load(pivtr) else
   if i= 6 then load(pdvtr) else
   if i= 7 then load(pbrnch) else
   if i= 8 then load(pnonh) else
   if i= 9 then load(psode1) else
   if i=10 then load(pskelp) else
   if i=11 then load(pgptm) else
   if i=12 then load(premap) else
   if i=13 then load(ppow) else
   if i=14 then load(pnpow) else
   if i=15 then load(peqp1) else
   if i=16 then load(pstdsp) else
   if i=17 then load(peqp11) else
   if i=18 then load(peqp12) ))$

Unfortunately, most of these files are not present in Maxima.  So the
situation is quite similar to odeaux :-(

Wolfgang