x g

基本解释

g x that is just negative partial f, partial x.
的梯度是∂g/∂x，The，gradient，of，g，--，Well，partial，g，，partial，x，那就是-∂f/∂
Otherwise, I'm going to get a new guess by taking g, x over g, adding them, 2 and dividing by two.
或者呢，我会有一个关于g的新猜想,就是X大于g，将二者相加，然后除以。
The chain rule is just how to take the derivative of "chained" functions — meaning, function x() calls function g(), and you want the derivative of x(g()).
链式法则仅仅是如何对链式函数求导的意思，函数x（）引用函数g（），你要求导x（g（））。

Otherwise, I'm going to get a new guess by taking g, x over g, adding them, 2 and dividing by two.
或者呢，我会有一个关于g的新猜想,就是X大于g，将二者相加，然后除以。
麻省理工公开课 - 计算机科学及编程导论课程节选
I'm going to start with a guess, I'm going to call it g. And then I'm going to say, if g squared is close to x, stop.
我会从一个猜想开始，把它叫做g，然后我会说，如果g的平方接近于X，打住。
麻省理工公开课 - 计算机科学及编程导论课程节选
For example, suppose you use vertical motion and you use y instead of x; and a would be g or -g; that's a particle falling down under the affect of gravity.
例如,假设在竖直运动中,你用 y 来代替 x,那么 a 就是 g 或者 -g,这就是一个受重力作用下落的质点
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