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An alternative spelling of the name "Chebyshev."

A 40-sided polygon.

Q is said to be tightly embedded if |Q intersection Q^g| is odd for all g in G-N_G(Q), where N_G(Q) is the normalizer of Q in G.

One of the four 3-polyaboloes.

The unique 3-polyiamond, illustrated above.

A polynomial with three terms.

A set of positive integers is called weakly triple-free if, for any integer x, the set {x,2x,3x} !subset= S. For example, all subsets of {1,2,3,4,5} are weakly triple-free ...

In the American system, 10^(36).

A transformation of the form A^'=UAU^(H), where U^(H) denotes the conjugate transpose.

If s_x is the standard deviation of a set of samples x_i and x^_ their mean, then the variation coefficient is defined as V=(s_x)/(x^_).