Strange floating point behaviour



Hi,

About the problems related with GUI and Interface, have you probed
TeXmacs + Maxima (I have probed with my students and seems pretty
friendly to them). This doesnt solve 2, but you can export postscript
graphics and embeded them in a TeXmacs interactive notebook (they can be
scaled later).

If your students doenst have Linux installed you can give them a Live CD
which include TeXmacs + Maxima (like Quantian). So they can use the
software without major technical knowledges about
configuration/instalation of Linux and in any machine they want (with
CD-ROM of course ;-) ). This is the idea that we are promoting in my
University.


Cheers,

Offray


On Fri, 2003-10-17 at 12:11, Janos Blazi wrote:
> Am Fri, 17 Oct 2003 00:45:14 -0400 hat Stavros Macrakis 
> <stavros.macrakis@verizon.net> geschrieben:
> 
> >> I have this work sheet (I teach at a high school):
> >
> > Great to see Maxima being used in a high school!
> 
> Thank you very much for your response.
> I started using Maxima but now I am loosing my courage a bit as there seem 
> to be serious obstacles.
> I mean the following points:
> 
> 1)  No modern GUI.
> 2)  Problem with carrying out calculations in floating point.
> 3)* Problem with plot2d: I do not know how I can scale graphics output,
>      I do not know, how I can draw curves with x-scale and y-scale being
>      equal (that is, in "isometric mode", what you get in Maple pressing
>      the "1:1" button or in MuPad specifying "Scaling=Constraint").
> 4)* I do not know how to prettyprint a session with the graphics being
>      embedded into the output (using the fonts size I prefer).
> 5)  I do not know how to draw points for example and how to plot several
>      plots at once (you can do this in Maple and in MuPad). I do not know
>      how to plot points, for example.
> 
> I could do without 1), 2) and 5) but I cannot do without 3)* and 4)*. So 
> at this state of play, Maxima can be used at high school, but Maple or 
> MuPad are definitely preferable if you have the money (which we hav e not).