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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。
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I've got one test there, and then I've just got one thing to do here, which has got a subtraction and a multiplication.
这儿有一个比较,然后在一个基本步骤里,做了一个减法和一个乘法两个基本操作。
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You might recall from grade school sometimes you put things in parentheses so that your addition happens first, then your multiplication, otherwise multiplication would happen by default first.
你们可能会想起小学时，将一些加法表达式,放在圆括号里，这样加法可以先计算，然后是乘法，否则，乘法默认先发生。
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One of the first principles of probability theory is called the multiplication rule.
概率论的最基本的原则,有一条叫乘法原理
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You still could do your multiplication tables.
你还是能够做乘法的。
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That makes sense if you think about this process of cell multiplication, that I have one cell it becomes 2 cells in a minute, it could become 4 cells in another minute, it could become 8 cells in another minute and that's all that this set of equations is representing.
如果你和细胞增殖的过程联系起来的话,这个是说的通的,我有一个细胞在一分钟里变成了两个细胞,那就可以再花一分钟变成四个细胞,再花一分钟就变成八个细胞,这就是这个方程所代表的意义
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Just as in grade school when you're doing division and multiplication, you do it from left to right in terms of order of operations.
正像是在小学你做除法和乘法的时候,你毫不含糊地从左到右,按顺序做运算。
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And I'm going to do it only using multiplication and addition and some simple tests. All right?
我只能用乘法和加法,以及一些小测试来解决这个问题？
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Because this is overloading that multiplication operator with two different tasks.
因为这会造成使得乘法操作符,对两种不同的任务造成重载。
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STUDENT: Standard order of operations, I guess take the multiplication first, and add the three.
学生：标准运算符的顺序，我猜是先做乘法，然后再去加3。
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I can do multiplication.
我们已经看到了。
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I've got one test, I've got a subtraction, I've got a multiplication, that's three steps, plus whatever number of steps it takes to solve a problem of size b minus 1.
我进行了一次比较，一次减法，一次乘法，一共是三个步骤,再加上t的步骤数。
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