Description: According to the graphics respectively to grab 12 points, then the chord length parameterization and the control points and the value relations between points calculated by iterative matrix, to capture the point as the data points are iteratively using Jaccobi and Gauss-seidel iterative method, get the control points. Then, the control points and the calculated control points are substituted into P (T) and Q (T) respectively, and then the two norm estimation error is adopted
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alpha\curve_alpha.m
alpha\curve__alpha.m
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