What is the meaning of pool integral

1. Ancient meaning: accumulation time difference In the sixth year of Wengong in the biography of Gu Liang, it is said that "the leap moon is attached to the other day of the month, and the integral is formed in the month." Fan Ning's note: "accumulate the rest of the month, to become this month."
the Imperial College of yuan, Ming and Qing dynasties used the methods of assessing students' academic achievements and selecting talents< In the first election annals of the Yuan Dynasty, "in the summer and June of the third year of the reign of emperor TAIDING, he paid more points as tribute, and according to the old system of his ancestors."< In Su Boheng's preface to sending Lou Sheng to study in China, the following is true: "if you succeed in your career, you will get points; if you pass the points, you will get a private exam."
the first election annals in the draft of Qing History: "the method of integrating calendar events was practiced at the beginning of the country. When the supervisor's term of imprisonment is over, he shall be transferred to the Ministry and institute to practice politics. "< The sum of competition scores; A accumulated score, in the network, there are many integral activities. Like all kinds of email, QQ, etc
it is mainly used to eliminate the static error and improve the error free degree of the system. The strength of the integral action depends on the integral time constant. The larger the integral action is, the weaker the integral action is, and vice versa
in order to stimulate consumer consumption, business is a disguised marketing means. For example, the full number of points can be exchanged for a certain proct. The way to get points: shopping, doing tasks, participating in certain activities.

2.

Hello, take Telecom as an example, telecom users can log in to the telecom points mall to exchange gifts. Taking the exchange of telephone charges as an example, this paper introces the exchange method:

1. Open the website of China Telecom points mall, and then log in to your mobile phone number

3. < pre> Hello, the points of the question bar are just for the time being as a reference of how much to reply. The more questions you reply to, the more points you get. If you ask a reward and choose the best answer, your reward points will be dected from your current account& lt;/ pre>

4. How to get points
operation
get points
daily limit
log in
2 points
2 points
submit answers
2 points
100 points
answers accepted
20 points + reward points for asking questions / number of adopted
-
first time setting good field
10 points
one time setting focus field
first time
10 points
one time
handling overe questions Question
10 points
---
What's the effect of points
operation
points consumption
reward
minus the corresponding reward
urgent questions
minus 20 points
ask friends for help
minus 2 points for each selected receiver
points penalty rules
operation
penalty proct
10 points for overe questions
10 points for deleted answers
10 points for respondents
If the answer fails to pass the review, 10 points will be reced (the supplementary amendment will be returned after passing the review)
if the question is deleted, 20 points will be reced
if the question fails to pass the review, 20 points will be reced and the corresponding reward points will be returned (the supplementary amendment will be returned after passing the review)
if the satisfactory answer is deleted, 20 points will be reced for the questioner and the satisfactory answer provider respectively
if the reward question is closed
if the supplementary amendment is approved, 20 points will be reced Reward is not returned

5. Join the team and answer questions, improve the adoption rate, is the most efficient< The following are the general rules
how to get points
operation
get points
daily limit
login
2 points
2 points
submit answers
2 points
100 points
answers accepted
20 points + reward points for asking questions / number of adopted
---
first time set good areas
10 points
one time
first time set areas of concern
/>10 points
one time
dealing with overe problems
10 points
---
What's the effect of points
operation
points consumption
reward
minus the corresponding reward
urgent problems
minus 20 points
asking for help
minus 2 points for each selected receiver
integral punishment rules
operation
penalty points
overe questions
minus 10 points for questioners
If the answer is deleted, 10 points will be dected for the respondent
if the answer fails to pass the Review
10 points will be dected for the respondent (the supplementary amendment will be returned after passing the review)

6. Calculus is a branch of mathematics that studies the differential and integral of functions and related concepts and applications. Calculus is based on real numbers, functions and limits< The concepts of limit and calculus can be traced back to ancient times. In the second half of the 17th century, Newton and Leibniz completed the preparatory work of many mathematicians, and established calculus independently. Their starting point of calculus is intuitive infinitesimal, and their theoretical basis is not solid. It was not until the 19th century that Cauchy and wilstras established the limit theory and Cantor established the strict real number theory that the discipline became more rigorous

calculus has been developed in connection with practical application. It has been more and more widely used in astronomy, mechanics, chemistry, biology, engineering, economics and other natural sciences, social sciences and applied sciences. In particular, the invention of the computer is more concive to the continuous development of these applications

calculus is a kind of mathematical thought, "infinite subdivision" is differential, and "infinite summation" is integral. Infinity is the limit. The idea of limit is the basis of calculus. It is to treat problems with the idea of a kind of movement. For example, the instantaneous velocity of the bullet flying out of the gun is the concept of differential, and the sum of the distances traveled by the bullet at each instant is the concept of integral

if the whole mathematics is compared to a big tree, then elementary mathematics is the root of the tree, many branches of mathematics are branches, and the main part of the trunk is calculus. Calculus is one of the greatest achievements of human intelligence. Since the 17th century, with the progress of society and the development of proctive forces, as well as many issues such as navigation, astronomy, mine construction and so on, mathematics has also begun to study the changing quantity. Mathematics has entered the era of "variable mathematics", that is, calculus has been continuously improved into a discipline. Throughout the 17th century, dozens of scientists did pioneering research for the establishment of calculus, but Newton and Leibniz made calculus an important branch of mathematics.

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8. Team fund 1) what is a team fund? Team fund is a common asset obtained through the efforts of the whole team. The team can be used to allocate to league members or other team building related matters, so as to facilitate the long-term development of the team. 2) How to get the team fund? a. Answer in the name of indivial is adopted: team fund = coefficient of team type * number of satisfactory answers, which is determined by two factors: team type and number of satisfactory answers; b. The answer in the name of the team was adopted: get 30 points of fund and the team fund equivalent to winning reward points; c. Proction team project: will get 2 points (original 1) fund; If the project is rated as recommended project, another 6 points (original 3 points) of team fund will be obtained; 3) How to use the team fund? Team fund can be allocated to team members, 1 team fund = 10 points, 1 team fund = 10 experience. Please enter an integer when allocating. There is an upper limit for each member's team fund every week, and there is no limit for the number of times of allocation;

9. It seems that it is very difficult to understand...
I understand ∫ as the inverse operation of increment, because ∫ DF (x) = f (x)
and DF (x) = F & # 39 x) DX, if ∫ DX is regarded as a sign, it is the inverse operation of derivation,
definite integral can be used to calculate length, area, volume and so on

10.

China Mobile's star rating means according to its & quot; Network age, average monthly consumption, contract status, downtime & quot; Etc. to evaluate the customer's star rating points

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