Re: Re: Exceptions Style Problem

• To: mathgroup at smc.vnet.net
• Subject: [mg86787] Re: [mg86754] Re: Exceptions Style Problem
• From: Murray Eisenberg <murray at math.umass.edu>
• Date: Fri, 21 Mar 2008 01:52:15 -0500 (EST)
• Organization: Mathematics & Statistics, Univ. of Mass./Amherst
• References: <frqpkk\$4ru\$1@smc.vnet.net> <200803200754.CAA29290@smc.vnet.net>

```What is the second item, Blue, doing in ExclusionsStyle?  I don't see
any difference in the plot if I just use ExclusionsStyle -> Red in this
example.

Jens-Peer Kuska wrote:
> Hi,
>
> y1 = ParametricPlot[folium[t], {t, -30, 30},
>    PlotRange -> {{-3, 3}, {-3, 3}}, ExclusionsStyle -> {Red, Blue},
>    Exclusions -> {t == -1}]
>
> ??
>
> Regards
>    Jens
>
> WetBlanket wrote:
>> I generated a plot using this code:
>>
>> folium[t_]:={3t/(1+t^3),3t^2/(1+t^3)};
>>
>> y1=ParametricPlot[folium[t],{t,-30,30},PlotRange->{{-3,3},{-3,3}}]
>>
>> It was a nice folium with the asymptote displayed.
>>
>> Next I plotted
>>
>> y1= ParametricPlot[folium[t], {t,-30,30},PlotRange->{{-3,3},
>> {-3,3}},Exclusions->-1 ]
>>
>> As expected this gave me the folium without the asymptote displayed.
>>
>> Finally, I plotted
>>
>> y1= ParametricPlot[folium[t], {t,-30,30},PlotRange->{{-3,3},{-3,3}}
>> ,ExclusionsStyle->Blue,Exclusions->-1]
>>
>> I expected to see the asymptote displayed in Blue, since the
>> documentation for ExclusionsStyle says, "ExclusionsStyle is an option
>> to plotting functions that specifies how to render subregions excluded
>> according to Exclusions."
>>
>> But, instead I get the folium without the asymptote displayed.
>>
>> Can anyone help me understand what I am missing?
>>
>> Thanks
>>
>> Gary Boswell
>>
>

--
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305

```

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