[Maxima-bugs] [ maxima-Bugs-2900628 ] Mature problems with Maxima from Ubuntu 9.10 Karmic package

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Bugs item #2900628, was opened at 2009-11-19 18:32
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Category: Installation
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Mature problems with Maxima from Ubuntu 9.10 Karmic package 

Initial Comment:
Maxima version: 5.17.1
Maxima build date: 14:31 7/13/2009
host type: x86_64-unknown-linux-gnu
lisp-implementation-type: GNU Common Lisp (GCL)
lisp-implementation-version: GCL 2.6.7

Problem:
solve and other function do not work correctly...

Examples:

1.) 
x² = 9
solve([%], [x]);

Result:

Universal error handler called recursively (:ERROR
                                                                        NIL
                                                                        CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER
                                                                        ""
                                                                        "Couldn't protect")
Universal error handler called recursively (:ERROR NIL
                                            CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER
                                            "" "Couldn't protect")
Maxima encountered a Lisp error:
 Error in CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER [or a callee]: Caught fatal error [memory may be damaged]
Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.

2.)  Using the example function, to get an example for solve

example(solve);

(%i1) 
(%i2) solve(asin(cos(3*x))*(f(x)-1),x)
Universal error handler called recursively (:ERROR NIL
                                            CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER
                                            "" "Couldn't protect")
Universal error handler called recursively (:ERROR NIL
                                            CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER
                                            "" "Couldn't protect")
Maxima encountered a Lisp error:
 Error in CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER [or a callee]: Caught fatal error [memory may be damaged]
Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.

3.) A equation even my cheap pocket calculator could solve...

0 = x²+72.92x-5104.16

`rat' replaced 5104.16 by 127604/25 = 5104.16
`rat' replaced -72.92 by -1823/25 = -72.92
Universal error handler called recursively (:ERROR NIL
                                            CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER
                                            "" "Couldn't protect")
Universal error handler called recursively (:ERROR NIL
                                            CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER
                                            "" "Couldn't protect")
Maxima encountered a Lisp error:
 Error in CONDITIONS::CLCS-UNIVERSAL-ERROR-HANDLER [or a callee]: Caught fatal error [memory may be damaged]
Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.

and so on, and so on, even in the previous version this was rather buggy... the program crashed a lot and it is not able do handle variables with exponents on both sides of an equation. For example trying to solve x² - ...*... = x² +...*...  would only cause a kind of ratsimp insteat of solving it by setting x free...

So how should anybody use this programm, if there is no way to trust in its solutions....?

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