Math Problem Statement
上面推导中,为什么面积微元等于偏导数的叉积的模量
Solution
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Math Problem Analysis
Mathematical Concepts
Differential Geometry
Surface Area
Formulas
Surface area differential element dS = |(∂r/∂u) × (∂r/∂v)| du dv
Theorems
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Suitable Grade Level
Advanced Mathematics
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