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Re: Strange RegionPlot


Hi,

it depend your requirement of accuracy but

RegionPlot[x + y < 4 && x - y > 3, {x, -20, 25}, {y, -20, 10},
  Mesh -> All, MaxRecursion -> 8]

should do that.

Regards
   Jens

Bruce Colletti wrote:
> Re 6.0.1 under Windows XP.
> 
> The region returned by:
> 
> RegionPlot[x + y < 4 && x - y > 3, {x, -20, 25}, {y, -20, 10}]
> 
> should be triangular.  Yet the apex is a short line segment and not a vertex.  
> 
> What creates this segment, and what must one do to get the vertex?  Thankx.
> 
> Bruce
> 


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