Principal Curvature
In differential geometry, the two principal curvatures at a given point of a surface are the eigenvalues of the shape operator at the point. They measure how the surface bends by different amounts in different directions at that point.
Read more about Principal Curvature: Discussion, Formal Definition, Classification of Points On A Surface, Line of Curvature
Famous quotes containing the word principal:
“Silence, indifference and inaction were Hitler’s principal allies.”
—Immanuel, Baron Jakobovits (b. 1921)