Latin Square - Reduced Form

Reduced Form

A Latin square is said to be reduced (also, normalized or in standard form) if both its first row and its first column are in their natural order. For example, the above Latin square is not reduced because its first column is A, C, B rather than A, B, C.

We can make any Latin square reduced by permuting (reordering) the rows and columns. Here switching the above matrix's second and third rows yields

A B C
B C A
C A B

which is reduced: Both its first row and its first column are alphabetically ordered A, B, C.

Read more about this topic:  Latin Square

Famous quotes containing the words reduced and/or form:

    Narrowed-down by her early editors and anthologists, reduced to quaintness or spinsterish oddity by many of her commentators, sentimentalized, fallen-in-love with like some gnomic Garbo, still unread in the breadth and depth of her full range of work, she was, and is, a wonder to me when I try to imagine myself into that mind.
    Adrienne Rich (b. 1929)

    [With the Union saved] its form of government is saved to the world; its beloved history, and cherished memories, are vindicated; and its happy future fully assured, and rendered inconceivably grand.
    Abraham Lincoln (1809–1865)