On page 174--Again, check and see if this is the same in your edition.
第174页,又一次,查看,这是不是与你们手中版本的页码一样。
So again, we should be able to check all of our formal charges and make sure they add up to 0, which they do, and that makes sense, because we have a neutral atom in terms of thionyl chloride.
因此同样地,我们可以检验一下,我们所有的形式电荷是否正确,确保它们加起来等于零,而它们确实是这样,这是合理的,因为亚硫酰氯是一个中性原子。
a I'm not, so come down here check palindrome that the two end points a and a are the same and call this again also.
判断两端都是,然后再次调用,注意发生了什么。
And again, anytime I'm doing algebra on the board, someone should check me at home, so just have a quick look at that. Is that right?
还有,每回我在黑板上演算,你们都帮我检查一下,看看有没有算错,这次算对了吗
So supposed that I give you 16 elements to sort, well, following the logic before, the running time involved in sorting 16 elements is gonna be twice the running time 16 of sorting 8 elements, left half and right half plus 16 - and again, a little sanity check, 16 means-- just the merge steps, right?
现在要对16个元素进行排序,根据之前的逻辑,对16个元素排序,要花的时间是对8个元素排序所花时间的,2倍,分别用于左半部分和右半部分,再加上6,这里16是-,做合并的步数,对吗?
So let's charge it up again and see if we can check again.
让我们再次给它充电看看,是否能再次观测到。
I differentiate a second time and check the sign, so the second order condition, I differentiate this expression again with respect to q1.
我们对它进行二次求导然后看符号,这个式子的二阶导数,就是一阶导数再对q1进行求导
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