Checking for intersection of surfaces

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Karthik
Karthik 2013-12-25
编辑： Matt J 2013-12-25
Hi, I want to know how to check for intersections between two surfaces in the same plane?For example I would like to plot all points on a circle which does not lie within a rectangle.
Thanks

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Matt J
Matt J 2013-12-25
编辑：Matt J 2013-12-25
Depends on what the "surfaces" are. In the case of a rectangle, or other polygon, you would probably use INPOLYGON.
For more complicated things, you would probably use inequalities describing the region
f(x,y)<=0
to disqualify points.

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