SOLVED: How many squares are there in a rectangle?

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How many squares are there in a m by n rectangular grid?

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Good show! Other than extension from squares to rectangle.... staying with squares, I was wondering how many more squares, when the corners of the squares co-incide with the grid intersections (i.e not necessairly oriented in the same manner as the whole m by n grid.... it seemed an easy extension, but it is more difficult than it looks! Have to mull it over...

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Can we use permutations and combinations to find number of square/rectangles ?

muditY