On Saturday 13 October 2001 17:22, Richard Fateman wrote:
> Jürgen Tischer wrote:
> > On Saturday 13 October 2001 10:43, you wrote:
>
> <snip> ... what does this mean....
>
> > Correctable error: Console interrupt.
> > Signalled by MACSYMA-TOP-LEVEL.
> > If continued: Type :r to resume execution, or :q to quit to top level.
> > Broken at SYSTEM:TERMINAL-INTERRUPT. Type :H for Help.
> > MAXIMA>>
>
> This means that you have stopped the program during the execution of
> the program "macsyma-top-level". It was waiting for input, probably.
> You hit ^c^c.
>
> > but once it said
> >
> > (C3) Solve((a^2+1)*x^2+a^3*x+1=0,x);
> >
> > Correctable error: Console interrupt.
> > Signalled by PCPLUS.
> > If continued: Type :r to resume execution, or :q to quit to top level.
> >
> > Process Maxima aborted
>
> At the first ^c or maybe the second, you interrupted it
> when it was inside the program during the execution of "pcplus"
> which I happen to know is a program that is part of the
> polynomial arithmetic package. I think it is defined in
> file rat3a.
>
> But you probably hit another ^c or two, so instead of resuming
> the computation or quitting to top level, you killed the process.
> This is not what you wanted, probably. And it may be possible
> to get GCL or whatever lisp you are using to do something else.
>
> I am not an expert on these various lisps. I almost always
> used Allegro CL, although I also have a "prepackaged" maxima
> for windows which presumably has GCL underneath.
>
> RJF
>
>
> RJF
Sorry, I wasn't clear enough. All this happened with my last example, that is
with
(C3) Solve((a^2+1)*x^2+a^3*x+1=0,x);
If I run this line, maxima has no output, but uses up 98 %CPU, and this until
I interrupt with a Ctrl-C (actually 2 Ctrl-C, because I'm using emacs).
And if I wait for a while before using the Ctrl-C, chances are that maxima
aborts. (More ^Cs only go deeper down in the lisp-level but won't abort.)
Last time the message was
*******
(C2) Solve((a^2+1)*x^2+a^3*x+1=0,x);
>Here I waited for about 2 minutes
>Here I gave the Ctrl-C Ctrl-C
Correctable error: Console interrupt.
Signalled by MACSYMA-TOP-LEVEL.
If continued: Type :r to resume execution, or :q to quit to top level.
Process Maxima aborted
*******
Jürgen