Second order item is omitted in Levenberg - Marquardt algorithm based on optimal theory.

基于优化理论的Levenberg -Marquardt 算法忽略了二阶项.

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Levenberg - Marquardt method is one of the most important methods for solving systems of nonlinear equations.

Levenberg -Marquardt 方法是求解非线性方程组的最重要的方法之一.

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