Finding all the points within a circle in 2D space

Question

I am representing my 2D space (consider a window), where each pixel is shown as a cell in a 2D array. i.e. a 100x100 window is represented by the array of same dimensions.

Answer 1

You can bypass the need for a conditional check:

for(x=center-radius; x

If needed, you can round(yspan).