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| Hi, I am trying to calculate mean curvature of a parametric surface(like sphere), and I wrote this code based on [this][1] discussion. Here is my code: MeanCurvature[(f_)?VectorQ, {u_, v_}] := Simplify[(-2*D[f, {u}] . D[f, {v}]* ... |
| when I draw an Ellipsoid the output is like this: but I think the edges (like those those in the circles) should be darker ,and the middle should be... |