Parametric plot3d



> Hi,
> at least with 5.19, 5.20 and 5.21 which are the 3 versions I have
> installed, it fails. In which version did it use to work?
>
> I'm sorry I was not aware that older versions of plot3d were able to
> plot 3D curves and not just surfaces.
> I will try to introduce that feature soon.
>
> In the mean time, you can fool plot3d into thinking that it has
> an expression with two parameters, instead of just one:
>
> plot3d([ signum(abs(x))*t, sin(t), cos(t)], [t,0,30], [x,-1,1]);

(...)

> Regards,
> Jaime
>
>

Hi,

Thank you all for fast response and usefule clues to come around this 
issue. The previous version I have been using is 5.20.1. I have just 
downgraded the package and it worked fine with one parameter syntax. I 
am Arch Linux user and got it from official 'extra' repository 
(http://www.archlinux.org/packages/extra/i686/maxima/). Hope this will 
help tracking down the problem.


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					Krzysztof Miernik