I mean, you may not understand it with algebra before but some of these sorts of pictures have you seen before?
我是说可能代数部分你没看懂,但你们以前见过类似的图像吧
So you know from algebra I can't actually solve this. There may be multiple solutions to this. What would I have to do to change my code? And the answer is fortunately not a lot.
我解不出来方程,可能会有多组答案,我需要怎样修改我的代码呢?,很幸运的,答案是不用修改很多。
I am going to do it first pictorially and then I will write the algebra. What happens here?
下来我会做绘画工作,并写下一些代数,这儿怎么了?
All I did was, I did a little bit of calculus, a little bit of algebra, and then I drew the thing.
我只不过是稍微用了点微积分,做了点代数运算,然后就画出来了
If you don't know how to measure anything, you are doing algebra and trigonometry.
如果你不知道如何进行测量,你就是在研究代数或者三角函数了
Now, unlike high school math or in algebra Z where you call things X and Y and Z, in programming, in computer science, you're actually dealing with humans where it's useful to have a variable name that's more descriptive than X and Y and Z.
不像高中数学或者代数中,称为X和Y和,在程序设计和计算机科学里,你实际上是在和人打交道,在这里有个描述性比xyz更强的,变量名称是很重要的。
This is a matter of simple algebra, of taking this and putting it here.
本质上讲,这是简单的代数运算,把这个式子代入上面的式子
Let's do a little bit of algebra just to make sure we can find this thing.
我们不妨也佐以数学计算验证一下
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
We did something very nerdy, namely, we just played with calculus and algebra.
我们使用了些死板的,微积分和代数
Once we escape the algebra just think about it in terms of economics.
不是数学的术语,是经济学的术语
The algebra is, of course, very trivial here.
这些数字本身当然是平凡无奇
But that's just kind of algebra and math.
但是这只是数学问题
Now, we get to draw some lessons out of this thing, so everybody who's feeling a little bit shell shocked from having been doing algebra and calculus and drawing pictures and feeling like they've been cheated into taking a class that looks far too much like economics, calm down we're going to actually talk right now.
下面我们从中总结点经验出来,那些因为代数和微积分计算还有绘图,而感到十分不爽的同学,你们是不是感觉被我忽悠了,才会选这门一点都不像经济学的课啊,稍安勿躁,我们马上切入正题
I'll leave the algebra there, transfer it up here, q1* = q2* = a - c over 3b.
先把算式留在那好了,我在这里再抄一遍吧,q1*=q2*=/3b
I mean the algebra doesn't really help the intuition here.
这里代数并没有真的有助于猜测
My algebra, which is often wrong, suggests that the solution is S1* equals S2* equals 1 over .
我代数总是算错,最后解是S1*=S2*=1/
All right, so that's just solving out the algebra, so we're saying what q solves, a - c over 2b - q2 over 2 = 0.
没错,只需要解出当,/2b-q2/2=0,时q2的值即可
What q2 makes this equal to 0 and Katie's answer is solving out the algebra here is that q2 that solves this must be a - c over b.
2为何值时这个算式等于0呢,凯特回答其实就是算出这个的解,即,q2=/b
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