等渗的插图对生成的数据回归。等张回归发现引入近似函数的同时最小化均方误差的训练数据。-An illustration of the isotonic regression on generated data. The isotonic regression finds a non-decreasing approximation of a function while minimizing the mean squared error on the training data.

Newton法的本质就是不断用切线来近似曲线,因此,Newton法也称为切线方法,本程序用Newton法求解n元正定函数的()