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Euler Curvature Formula


\begin{displaymath}
\kappa=\kappa_1\cos^2\theta+\kappa_2\sin^2\theta,
\end{displaymath}

where $\kappa$ is the normal Curvature in a direction making an Angle $\theta$ with the first principle direction.




© 1996-9 Eric W. Weisstein
1999-05-25