So think of x as a vector of 0's and 1's.
可以把x看成是一个0和1的向量。
In machine learning, the data is often represented as a vector, sometimes called a feature vector.
在机器学习中,数据通常被表示为矢量,有时也称作特征矢量。
In the PDF form, there could be graphic elements such as a vector image, an oblique line, and a curved line.
在PDF表单中,可以有图形元素,例如矢量图像、斜线和曲线。
The advantage of introducing that guy is that if you like, I can now write an equation for the acceleration as a vector.
引入它的好处是,如果你愿意的话,我可以把加速度写成矢量形式
So think of x as a vector of 0's and 1's.
可以把x看成是一个0和1的向量。
If you want to write it as a vector equation, you want to write it as v square over r minus-- I want to say that it's pointing in the direction toward the center.
如果要写出矢量方程,就应该写成 -v^2 / r,也就是说,方向就向圆心
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