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If I have more than 2 points on a graph, how would I best find a point that might be the midpoint between all of them?

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    Independent of whether the points are on a graph, you can find what might be called their midpoint by forming the average of each of the coordinates.2011-04-26
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    @Theo: graph paper.2011-04-26
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    @Mitch: Thanks. I've just figured that out by the OP's reaction to Ross's answer :)2011-04-26

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If you have a bunch of $n$ points, $(x_i,y_i)$, you can use $$(\frac{1}{n}\sum x_i,\frac{1}{n}\sum y_i)$$ Does that meet your needs?

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    Oh of course! Thank You2011-04-26