infinity correct maxima



Hello Barton,

I have downloaded altsimp.lisp and tried to execute the code.

In a Maxima session I loaded the code with load("altsimp.lisp"). But with gcl
2.6.8 and CLISP 2.46 on my system I get fatal errors and the Maxima session is
killed.

I have the same problems when I compile with compile_file("altsimp.lisp") and
load the object-file.

With CLISP I get a "Program stack overflow" in rtest9.mac.

When I use a batch-mode I get the following error with GCL 2.6.8 in
rexamples.mac (at this point the testsuite seems to kill my Maxima session):

********************** Problem 79 ***************
Input:
(kill(all), example(nusum))


Result:
(%i1) nusum(n*n!,n,0,n)

Dependent equations eliminated:  (1)
(%o1)                            (n + 1)! - 1
(%i2) nusum(n^4*4^n/binomial(2*n,n),n,0,n)
                           4        3       2              n
            2 (n + 1) (63 n  + 112 n  + 18 n  - 22 n + 3) 4     2
(%o2)       ------------------------------------------------ - ----
                          693 binomial(2 n, n)                 33 7
(%i3) unsum(%,n)
                                     4  n
                                    n  4
(%o3)                          ----------------
                               binomial(2 n, n)
(%i4) unsum(product(i^2,i,1,n),n)
error-catch

This differed from the expected result:
Done

Do you have an idea what I should do?

Dieter Kaiser

-----Urspr?ngliche Nachricht-----
Von: maxima-bounces at math.utexas.edu [mailto:maxima-bounces at math.utexas.edu] Im
Auftrag von Barton Willis
Gesendet: Freitag, 29. August 2008 16:27
An: maxima at math.utexas.edu
Betreff: Re: [Maxima] infinity correct maxima

My infinity correct simplus is now in CVS Maxima. Look for it in 
.../share/contrib/altsimp/altsimp.lisp. 
We welcome comments, improvements, extensions (infinity correct 
multiplication, exponentiation, ...) , and .... 

Barton
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