And why must it be orthogonal? Plenty of matrices with |determinant| = 1 are not orthogonal. Like (1 10^(10^10)) ( ) (0 1) —Dan

Not perhaps the easiest creature on the planet to love, but why must it be so negative? Let's hear it for Phacochoerus africanus with determinant +1 ! WFL

On 12/29/17, David Wilson <davidwwilson@comcast.net> wrote:

...

What has tusks and a determinant of -1 or -1? [scroll down]

A warthogonal matrix.

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