Re: [Gnuplot-info] Cone in parametric :-)

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Carles Pina i Estany wrote:
> Hello,
> 
> I am not able to plot cylinder using cartesian system (I think that is
> not possible in gnuplot?)

You think incorrectly.

> I am trying to do the figures that I need using parametric coordinate. 

You're confusing things here.  There's no such thing as "parametric 
coordinates".  Parametric is a model for describing surfaces, not a 
coordinate system.  Gnuplot does parametric plots in a cartesian 
coordinate system.  A simple cylinder is

	set parametric
	set urange [0:2*pi]; set vrange [-2:2]
	splot cos(u), sin(u), v title "cylinder"


> Any idea? the formula seems correct, Maybe range problem for u and v?

Quite certainly, since you didn't specify any ranges for u and v. 
Please do read the documentation: "help parametric".