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Determinant (Binary Quadratic Form)

The determinant of a Binary Quadratic Form

\begin{displaymath}
Au^2+2Buv+Cv^2
\end{displaymath}

is

\begin{displaymath}
D\equiv B^2-AC.
\end{displaymath}

It is equal to 1/4 of the corresponding Discriminant.




© 1996-9 Eric W. Weisstein
1999-05-24