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Mathematical descriptions of the electromagnetic field
陈跃文 2016-11-15 11:25
Mathematical descriptions of the electromagnetic field Maxwell's equations in the vector field approach Maxwell's equations ( vector fields ) {displaystyle nabla cdot mathbf {E} ={frac {rho }{varepsilon _{0}}}} Gauss's law {displays ...
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Maxwell equation
陈跃文 2016-11-14 21:29
Maxwell's equations For thermodynamic relations, see Maxwell relations . For the history of the equations, see History of Maxwell's equations . For a general desciption of electromagnetism, see Electromagnetism . Electromagnetism Electricit ...
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证明 等值面第二基本形式等于 Hessian
陈跃文 2016-11-14 11:52
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Second fundamental form
陈跃文 2016-11-10 21:48
Second fundamental form In differential geometry , the second fundamental form (or shape tensor ) is a quadratic form on the tangent plane of a smooth surface in the three-dimensional Euclidean space , usually denoted by {displaystyle mathrm {I!I} } ...
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Second fundamental form
陈跃文 2016-11-10 21:43
Second fundamental form From Wikipedia, the free encyclopedia In differential geometry , the second fundamental form (or shape tensor ) is a quadratic form on the tangent plane of a smooth surface in the three-dimensional Euclidean space , usual ...
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Second fundamental form
陈跃文 2016-11-10 21:39
Second fundamental form From Wikipedia, the free encyclopedia In differential geometry , the second fundamental form (or shape tensor ) is a quadratic form on the tangent plane of a smooth surface in the three-dimensional Euclidean space , usual ...
2472 次阅读|没有评论
Second fundamental form
陈跃文 2016-11-10 21:38
Second fundamental form From Wikipedia, the free encyclopedia In differential geometry , the second fundamental form (or shape tensor ) is a quadratic form on the tangent plane of a smooth surface in the three-dimensional Euclidean space , usual ...
1858 次阅读|没有评论
推导Gauss Codazzi equation
陈跃文 2016-11-10 21:30
Gauss Codazzi equation
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Geodesic curvature
陈跃文 2016-11-8 22:19
Geodesic curvature In Riemannian geometry , the geodesic curvature {displaystyle k_{g}} of a curve {displaystyle gamma } measures how far the curve is from being a geodesic . In a given manifold {displaystyle {bar {M}}} , the geodesic curvature is ju ...
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