The rules and methods for curve and surface smooth fitting are given. Especially we study for the mathematics model and application with the minimum energy method.
给出了曲线曲面光顺的准则和方法，并着重探讨了最小能量法数学模型的建立及其应用。
With the Lagrange multiplier method, the minimum distance of the center of a circle and a quadric surface was provided and the tangency condition of curve and surface was given.
利用拉格朗日乘子法求解二次曲线和二次曲面之间的最小距离，给出了曲线与曲面相切的条件。
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