But wouldn't the squares intersect if I changed to < to <= ?

Example, if x2 <= x3 then the statement is true if x2 intersects with x3 since x2 is the lower right corner and x3 is the upper left corner.

And yes, the x4 is missing, it was a typo.

In reply to Re^4: Checking if squares intersect by Anonymous Monk
in thread Checking if squares intersect by Anonymous Monk

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