In parallel volunteer in entering oneself for an examination, gradient is a very main idea. Can say, understood gradient only, just was real reason to see parallel volunteer.
I come from the problem at the parent to parallel and volunteer reflection: Can how old gradient just make sure my program is safe? I try to explain with this article.
In a lot of about parallel volunteer the metropolis in the lecture that enter oneself for an examination emphasizes plan must having gradient, and intense proposal gradient should by arrive high low. A lot of instructor often tell communications center to be protected firmly. A lot of action do a teacher to also be used rush to be protected firmly will explain parallel is volunteer. About developing the version that maintains firmly, here I was not criticized. This concept holds out misdirect person actually.
Without giving thought to how, suppose, in certain batch, you can choose 6 schools, through your research, you chose 6 your hearts happy the school. These 6 schools formed so called gradient. The school that yourself feeling chooses is from arrive high low, accord with gradient to ask. But, you discover suddenly, is gradient a vague concept only? Can be gradient calculated? If gradient cannot be calculated, so the expert says, can differ between the school 5 arriving 10 minutes is how to be calculated come out, this program that how uses us 5 minutes again enters oneself for an examination go up? These a few problems has done you muddleheaded?
Everybody knows, not the mark between of the same age is incommensurable. For instance, 2018 540 mixing is 530 minutes of 2017 incommensurable. We cannot say 530 minutes of 2017 to compare 2018 540 low. Low, must see corresponding rank!
And when we are making plan, the collection of college of in former years takes data, for instance the line carrying file 2018 is mixed achievement of my the university entrance exam this year. Since differ year of mark between is incommensurable, also do not talk to go up to admit a mark to make the calculation of gradient with the college of the achievement of the university entrance exam this year and in former years.
Someone says, is gradient the admits a mark difference between the college? How be returned and is achievement of my the university entrance exam relevant? Of course, if do not have a relation with achievement of the university entrance exam, the also can give plan of 640 minutes 530 minutes student that we do was used. This affirmation has a problem. Accordingly, gradient is compared and the student's achievement is relevant.
Concrete step
The first pace of computational gradient, want the collection of a college of in former years to take achievement of data and my the university entrance exam namely, the choice makes transition, changeover arrives same year. For instance, if we think computation the gradient 2018, so change achievement of my the university entrance exam to 2018. How to change, I advance a new idea with respect to need, equivalent cent (call equivalence to divide again) . My individual prefers the version of equivalent cent. The effect that means divides is same. The idea that equivalence gives us is identical mark.
How is equivalent cent calculated?
Foundation of equivalent cent calculative is a rank. For instance 2018 the university entrance exam the first achievement is 730, this year the university entrance exam the first achievement is 710. So if conversion arrives 2018, became 730 minutes 710 minutes of this year. If conversion arrives this year, became 710 minutes 730 minutes of 2018.
In actual computation, not so simple. We all jobs are to help examinee enter oneself for an examination. is not discussion maths changeover. In the article, discussed not carefully how to be changed.
Had equivalent branch, we can begin to discuss gradient. Suppose, conversion of my achievement of the university entrance exam arrives 2018 is 590 minutes, 6 schools that I choose, it is respectively
The school 1: 595 minutes
The school 2: 592 minutes
The school 3: 589 minutes
The school 4: 586 minutes
The school 5: 583 minutes
The school 6: 580 minutes
You should notice, every school differred 3 minutes. Be gradient these 3 minutes? Had said above me, leaving gradient of examinee achievement computation is no point. Namely the university entrance exam that we need to introduce examinee is divided in the equivalent 2018 590.
The school 1: 595 minutes, ? 590-595=-5
The school 2: 592 minutes, ? 590-592=-2
The school 3: 589 minutes? , ? 590-589=1
The school 4: 586 minutes, ? 590-586=4
The school 5: 583 minutes? , ? 590-583=7
The school 6: 580 minutes, ? 590-580=10
Here, - 5, - 2, 1, 4, 7, the 10 gradient that be by my definition. The tower above of the equivalent cent that the meaning is opposite examinee or low the mark that give.
You look, is this gradient computation a bit complex? This still is the simplest case, made calculation of a year only.
The action of GPS of the university entrance exam saves the time of examinee namely. Had GPS of the university entrance exam, these computational examinee need not be done personally.
