math jokes 4 mathy folks
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:: Miscellany
A Latin square is an n × n square in
which n groups of n elements are divided so that there is one
element from each group in every row and every column. For example, the figure to the
left shows the (trivial) solution for a 2 × 2 square.
Arrange the 16 spheres onto the 4 × 4 square so that
there is one sphere of each color in every row and every column. Click and drag the spheres
to move them onto the grid.
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How many different arrangements can you find?
Both rows and both columns contain one red and one blue sphere.
A normalized Latin square is one in which the order of the elements is the same
in the top row and the left column.