Very little attention has been paid and to consolidate their basic knowledge of physics, many people think that the basis of physics is that we can back down some laws, formulas and so on, the development of physics are a matter of course, but. There is no solid foundations of physics you can not correctly and completely understand the physics, new progress.
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Well, of course, we've seen other approximation formulas and so on.
当然，我们已经见到了一些别的近似公式。
So, yes, and I should say, of course you can also use the gradient and other things like approximation formulas and so on and so far, it's just notation.
所以我这里要说一下，你也可以使用梯度，或者其他的公式，到目前我们只是学了这些新的记号方式。
You can manipulate the worksheet by adding columns and rows, including data from other sources, creating formulas for computations, and so on.
您可以通过添加列和行、包括其他来源的数据、创建用于计算的公式等，从而操作工作表。
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