inpolygon help to find number of integer points

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Jenny Briggs
Jenny Briggs 2016-3-10
编辑： Jenny Briggs 2016-3-10
Hi, i've been trying to write a code to find the number of integer set of coordinates (x,y) within a circle. I'm trying to do this on a circle (0,0), radius 4 below. However the code I've made keeps giving me the wrong answer. It'd be much appreciated if anyone could help me on this or correct my code, thanks.

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Torsten
Torsten 2016-3-10
编辑：Torsten 2016-3-10
You only consider points (xq,yq) which have the same x- and y- coordinate.
This will give you a wrong answer.
Use meshgrid to generate all combinations of xq- and yq- coordinates.
Best wishes
Torsten.

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