The message below is being cross-posted from the LogoForum. Please
reply here at comp.lang.logo and it will be cross-posted back to the
LogoForum. The original author of this message is
jotape1960@[EMAIL PROTECTED]
In LogoForum@[EMAIL PROTECTED]
Pavel Boytchev <pavel@[EMAIL PROTECTED]
> wrote:
>
> jbhnj1975 wrote:
> >
> > I would like to start with something simple like an xy plane
graphing a
> > parabola as y=(+/-)x^2
> >
> > Can I create a program (in Elica/Logo) that can solve and graph
> > equations?
>
>
> Solving an equation could be tricky. Some equations have nice and
easy
> solutions, others can be solved only approximately. So the answer
of
> this part of your question is YES AND NO.
>
> As for graphing, this is (usually) much easier. Here is a program
that
> switches in 2D view, draws both axes and the two parabolas: y=x^2
and
> y=-x^2 for x in [-2,2).
>
>
> run "graphix
> singlebuffer
> lookat (vector 0 0 20) (vector 0 0 0) (vector 0 1 0)
>
> paint segment (point -3 0) (point 3 0)
> paint segment (point 0 -5) (point 0 5)
>
> make "x -2
>
> repeat 400
> [
> paint point :x :x*:x
> paint point :x 0-:x*:x
> make "x :x+0.01
> ]
>
>
> Attached is a snapshot of the screen.
>
> Best regards,
> Pavel
>
Hi Pavel!!!
I have a problem with your idea:
I'm using Elica 5.4 and I "copied and pasted" your procedure but I
only get an error message:
"UNKNOWN VARIABLE OR COMMAND [SINGLEBUFFER]" ¿?
Another aditional question:
ElicaLogo and MSWLogo use a very good and real "human vision"
perspective 3D mode. I really love this characteristic. But, maybe,
it would be necessary to have another kind of 3D mode: the "non-
human vision" 3D. You known, something like some games (Sims, Age of
Empires, etc). I don't like that way but, maybe, it would be useful
to some kind of 3D geometry problems. Just an idea.
GOD BLESS YOU ALL!!!!!!!
Juan J. Paredes G.
From Curicó, Chile, South America, with love.
__._,_.___
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