If X is the number of cells, then the rate of change of X, dX/dt, the rate of change of the cell population, how fast division is taking is proportional to the number of cells I have.
如果X是细胞数目,那么X的改变率就是dX/dt,就是细胞数目的改变率,分裂的速度有多快,和细胞数量呈比例关系
And then the things I have to ask is how much of a division do I want to do?
如果可以这么做,那么分治算法是个好的选择,接下的问题就是我需要把问题分成多少份?
The institution of insurance is something that really came in--it's one of the earliest-- I consider it a division of finance-- really came in the 1600s when probability theory was invented.
保险机构的出现,我认为这是金融业中,最早的分支之一,大约在17世纪,概率论刚刚诞生
That's true, but especially because of my parenthesization 32 over here, because I'm saying, "Do f minus 32, but then multiply it by the division on the left."
是那样的,但是特别地,因为我这里加上了括号,因为我指明,“f减去,然后它乘以左边的那个除法的结果“
Same way that I have multiplication or division as a primitive, functions are going to give me, or somebody else who wrote them for me as part of a library, a new primitive that I'm going to be able to use.
我在用乘法或者除法当做原语,这些函数,或者别人写程序库中的函数,将会给我返回一个,我能使用的新原语。
If I wanted to get full, real division, I should make one of them a float.
如果我想要得到真正的除法答案,我需要把他们之中的一个,变为浮点数类型。
I can do division, right? Whoa. Right?
我也可以做除法对不对?
I can't even do division--$100,000 a year.
我一下子反应不过来...一年10万美元
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