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| Fig. 3.28a-c : Diagrams to define second fundamental form for a surface. a) Parameter plane with arbitrary curve u = u(t), v = v(t). b) Surface with curve, c[u(t), v(t)], unit normal vector, N, differential tangent vector, dc, and differential normal vector, dN. c) Surface with osculating plane containing the unit binormal vector, n(t), and curvature vector, k(t). Reprinted from (Pollard et al., 2004) with permission from The Geological Society of London. | ||||
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