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Answers for “当放大非线性变换时,网格线会发生什么?”

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Local linearity means that although a transformation is globally nonlinear and complex, it appears linear when viewed in a sufficiently small neighborhood around a specific point. The Jacobian matrix captures this local linear behavior.

Conditions: The transformation is nonlinear globally.; The analysis is restricted to a small neighborhood around a specific point.; The zoom level is high enough that curvature is negligible.