There are multiple bugs here. Please file a bug report at
http://sourceforge.net/projects/maxima/
You needed to enter "$askexp" at the lisp prompt, not "askexp". The
documentation should be improved.
--Jim
On Wed, 2002-04-24 at 20:51, Jürgen Tischer wrote:
> (C3) asksign(log(x));
> Is x - 1 positive, negative, or zero?
>
> neg;
> (D3) NEG
> (C4) asksign(log(-1));
> (D4) NEG
>
> Now
>
> (C5) describe(askexp);
>
>
> Info from file /usr/local/info/maxima.info:
> - Variable: ASKEXP
> default: [] contains the expression upon which ASKSIGN is called.
> A user may enter a MACSYMA break with ^A and inspect this
> expression in order to answer questions asked by ASKSIGN.
> (D5) FALSE
>
> My maxima doesn't go into any break with ^A, so I used Ctrl-C (is ^A the same
> as Ctrl-A)
>
> (C6)
> *** - Ctrl-C: User break
> 1. Break [1]> askexp;
>
> *** - EVAL: variable ASKEXP has no value
>
>
> Jürgen
>
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