Daniel,
Actually, the first mystery happens because of this:
(%i1) get(sin,'type);
(%o1) trigonometric
(%i2) kill(all);
(%o0) done
(%i1) get(sin,'type);
(%o1) false
There are several other properties set by trgsmp that are "forgotten" when a
kill(all) is executed. I'm just not sure if this is an expected side effect
of 'kill(all)' or a bug.
Viktor
-----Original Message-----
From: Daniel Martins [mailto:danielemc at gmail]
Sent: Monday, December 06, 2004 11:14 AM
To: Viktor T. Toth
Cc: maxima@math.utexas.edu
Subject: Re: [Maxima] Features or bugs?
The first mystery is old and really intriguing and sometimes we cannot
simplify e.g. the product of rotation matrices due to this quite
randomic bahaviour
Differently from you I dont know why this happens!
Daniel
On Sat, 4 Dec 2004 18:18:37 -0500, Viktor T. Toth <vttoth@vttoth.com> wrote:
> Some minor mysteries:
>
> 1. I think I know why this happens, but should it be happening?
>
> (%i1) trigsimp(sin(x)^2+cos(x)^2);
>
> (%o1) 1
> (%i2) kill(all);
>
> (%o0) done
> (%i1) trigsimp(sin(x)^2+cos(x)^2);
>
> 2 2
> (%o1) sin (x) + cos (x)
>
> 2. This is cosmetic only, but can be annoying, e.g., when creating demos:
> When a "string" (yes, I know MAXIMA doesn't really have strings, hence the
> quotes) containing a linefeed is barfed back, it becomes double spaced. Is
> this intentional?
>
> (%i2) "This is a ...
> ... two line string.";
>
> (%o2) This is a ...
>
> ... two line string.
>
> Viktor
>
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