well, the goal is to minimize or maximize a function of several variables f let's say, for example, f of x, y, z, but where these variables are no longer independent.
嗯,它是用来最小化或者最大化多元函数的,例如,一个关于x,y,z的方程,注意了,在这个方程里面的变量之间却不是独立的。
the teaching of function of several variables is a difficult point in higher mathematics teaching.
求最值问题是中等数学永恒的话题,其中,多元函数求最值是难点。
ok, so last time we saw how to use lagrange multipliers to find the minimum or maximum of a function of several variables when the variables are not independent.
上次我们看了,怎样利用拉格朗日算子,去求解一个受约束的,多变量函数的最大最小值。
in mathematics, the integral of a function of several variables defined on a line or curve that has been expressed in terms of arc length .
数学中,定义在直线或曲线(已经表示为许多段弧长)上的多元函数的积分。
through the quadratic form theory, another solution to the extremum problem of function of several variables is given.
利用二次型的理论,给出解决多元函数极值问题的另一种方法。