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Fountas And Pinnell Level Chart

Fountas And Pinnell Level Chart - 一、 拉格朗日 松弛 当遇到一些很难求解的模型,但又不需要去求解它的精确解,只需要给出一个次优解或者解的上下界,这时便可以考虑采用松弛模型的方法加以求解。 对于一个 整数规划. 我们把上面这个问题称之为松弛问题, 称为拉格朗日乘子, 为对偶函数。 这里边要注意两点:一是拉格朗日乘子 是一个向量,它的维数和被松弛掉的约束的数量是一样的,.

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