       Re: setting X and Y range in 2D plots

• To: mathgroup at smc.vnet.net
• Subject: [mg15377] Re: setting X and Y range in 2D plots
• From: Hans Staugaard Nielsen <hsn at imf.au.dk>
• Date: Tue, 12 Jan 1999 03:14:42 -0500
• Organization: Department of Mathematical Sciences, University of Aarhus
• References: <779crp\$bgi@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Jorge Zickermann wrote:
>
> Drazen,
>
>     As far as I know, the following applies to any type of plot of a 2D
> function. Lets say you have a function defined...
>
> y[x_]:=x^2
>
>     You can plot the result for a defined range of x using the automatic
> setup of axes by Mathematica.
>
> graphic = Plot[y[x],{x,-10,10}]
>
>     Then, at any time, you can show the defined plot for a PlotRange
>
> Show[graphic,PlotRange->{{-5,5},{0,10}}]
>
>     where the ranges of x and y, to be seen, are defined.
>
>     If you copy the inputs above into a notebook, and evaluate them, you
> will see that the definition of graphic gives a plot, which I suppose
> you don't want to see. Unlike with common input cells for which a
> following semicollon (;) hides the result, with Plot that doesn't
> happen. If you only want to see a particular window at all times, then
> you have to contract the inputs into the following form...
>
> graphic = Plot[y[x],{x,-10,10},PlotRange->{{-5,5},{0,10}}]

Or you could say

graphics=Plot[y[x],{x,-10,10},DisplayFunction->Identity]

This does not display the plot,
and then have another function

showwindow[pltrange_]:=Show[graphics,PlotRange->pltrange,
DisplayFunction->\$DisplayFunction]

Which only displays the window you want

>
>     Notice that if you ask for a PlotRange wider than that obtained for
> the variation of x, you won't get a complete plot. ie; If in the
> PlotRange above you wanted to see a window {{-5,12},{0,10}} you would
> have to make x vary up to 12, {x,-10,12}.

This still applies.

Hans

```

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