On Monday 31 March 2008 17:25, Hans W. Hofmann wrote:
> I am searching for some macros to handle vector geometrie inclusive
> plotting. Is there a pending project or exist here some people zu start a
> project? As rookie in programming macros I want to discuss the basics and
> structur of a vector geometrie macros preferably in german-english ;-).
>
> Some thoughts:
> Points should described as a list [y,x,z] and vectors as matrix
> matrix([x],[y],[z]).
> I tend to have e.g. a line object, pardon, will say a line list, which
> covers all/some details of describing/plotting a line. Input wellcome...
As far as I know, there are no special packages for analytic geometry, but
basic functions and linear algebra stuff are enough, I think. Introducing new
objects may produce more mess than advantages.
In vector calculus code, Maxima represents vectors as lists; "listarith" works
with lists in appropriate way. Vector plotting is already implemented in
draw2d / draw3d.
--
Alexey Beshenov <al at beshenov.ru>
http://beshenov.ru/
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