Saturday, October 23, 2010

“We’re not dividing matrices out there”

Oregon right tackle Mark Asper, quoted by Matt Hinton, on the bizarre signal posters on their sideline:

"It's not, 'OK, I have to add the top square and the bottom square.' We're not dividing matrices out there."

C’mon, Mark, inverting a 2x2 matrix isn’t that hard. For example, the inverse of the above matrix is simply:


“Dividing” another matrix, such as the one to the right, by this matrix is simply a matter of performing matrix multiplication of the new matrix and the inverse shown above.

This multiplication is left to the reader (or quarterback).

These guys have 45 seconds to get the play together. Frankly, I don’t see what would be so hard.

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