Drawing by calculation
Publish: 2021-04-16 13:37:21
1. E-coin is a kind of virtual currency born in the Internet, which can support the point-to-point payment function. It is assumed that e-coin can circulate among countries, barter platforms, and enterprises. It is a widely used token that can realize the point-to-point payment through the Internet in the barter process, and has made the "currency" function for the global circulation of the barter instry
the birth of e-coin: e-coin originated in Germany, which is one of the most mature and developed countries in the world trade. It is also the first country to recognize and use virtual currency (bitcoin) and one of the important allies of the United States. In the future, the trend of global virtual currency will inevitably prevail. Germany took the lead in recognizing the legal status of bitcoin, and at the same time launched the global plan of e-coin in time. In the future, global economic integration is also an inevitable trend, and barter instry will graally extend to every corner of the world, so e-coin was born under this inevitable development trend
issue of e-coin: e-coin is issued by research on Social Economic Science (eoses) under the Ministry of finance of Germany. It is planned to issue 6.75 million copies to the world from 2014 to 2017, including 3.6 million copies in the first year, 1.8 million copies in the second year, 900000 copies in the third year and 450000 copies in the fourth year. The total number of issues per year is distributed on an average of 360 days (of which no issue is made on December 27-31 of each year). The circulation in the first year is 1000 / day, 500 / day in the second year, 250 / day in the third year and 125 / day in the fourth year. Due to the limitation of the total amount and the continuous rection of the quantity, with the increasing demand of e-coin graally entering the barter platform in the future, it will lay the foundation for the destined appreciation of e-coin. According to the rough calculation of the total transaction volume of the global barter platform by the eoses experimental group, the highest price of e-coin will be stable at US $10000 and RMB 60000 to meet the demand of barter token circulation. The German Ministry of Finance intends to confirm the legal status of the e-special currency after the price of the e-special currency is stable at US $5000
mining of e-coin: e-coin is composed of 64 base encryption algorithm data. Each coin will be divided into three decimal places at most, and it exists and circulates with the Internet in the form of original code. Every coin needs a computer online to "mine" through the computing power of the computer to obtain e-coin. Because each e-coin has its own code composition, there is no possibility that the issuing institution has a large number of e-coins. Although there are issuing institutions, they are also among the nodes of the Internet all over the world. Moreover, "mining" is limited according to the fixed issuing time of e-coins, and no indivial or organization can obtain more than 51% of the e-coins, Therefore, it not only solves 51% of the risk, but also is a kind of decentralized currency. At the same time, the eoses experimental group issued the e-special currency under the supervision and management of the financial department, which relatively guaranteed the basis for the standardized and stable operation of the e-special currency. The total amount of e-coin issued every day is limited, but it does not mean that the total amount of e-coin issued on that day will be mined out. E-coin is based on the sum of the computing power of all mining computers on that day to determine whether the amount of ore pool is mined out on that day. If the total amount issued on that day is not mined, it will be accumulated to the next day's total ore pool and mined together.
the birth of e-coin: e-coin originated in Germany, which is one of the most mature and developed countries in the world trade. It is also the first country to recognize and use virtual currency (bitcoin) and one of the important allies of the United States. In the future, the trend of global virtual currency will inevitably prevail. Germany took the lead in recognizing the legal status of bitcoin, and at the same time launched the global plan of e-coin in time. In the future, global economic integration is also an inevitable trend, and barter instry will graally extend to every corner of the world, so e-coin was born under this inevitable development trend
issue of e-coin: e-coin is issued by research on Social Economic Science (eoses) under the Ministry of finance of Germany. It is planned to issue 6.75 million copies to the world from 2014 to 2017, including 3.6 million copies in the first year, 1.8 million copies in the second year, 900000 copies in the third year and 450000 copies in the fourth year. The total number of issues per year is distributed on an average of 360 days (of which no issue is made on December 27-31 of each year). The circulation in the first year is 1000 / day, 500 / day in the second year, 250 / day in the third year and 125 / day in the fourth year. Due to the limitation of the total amount and the continuous rection of the quantity, with the increasing demand of e-coin graally entering the barter platform in the future, it will lay the foundation for the destined appreciation of e-coin. According to the rough calculation of the total transaction volume of the global barter platform by the eoses experimental group, the highest price of e-coin will be stable at US $10000 and RMB 60000 to meet the demand of barter token circulation. The German Ministry of Finance intends to confirm the legal status of the e-special currency after the price of the e-special currency is stable at US $5000
mining of e-coin: e-coin is composed of 64 base encryption algorithm data. Each coin will be divided into three decimal places at most, and it exists and circulates with the Internet in the form of original code. Every coin needs a computer online to "mine" through the computing power of the computer to obtain e-coin. Because each e-coin has its own code composition, there is no possibility that the issuing institution has a large number of e-coins. Although there are issuing institutions, they are also among the nodes of the Internet all over the world. Moreover, "mining" is limited according to the fixed issuing time of e-coins, and no indivial or organization can obtain more than 51% of the e-coins, Therefore, it not only solves 51% of the risk, but also is a kind of decentralized currency. At the same time, the eoses experimental group issued the e-special currency under the supervision and management of the financial department, which relatively guaranteed the basis for the standardized and stable operation of the e-special currency. The total amount of e-coin issued every day is limited, but it does not mean that the total amount of e-coin issued on that day will be mined out. E-coin is based on the sum of the computing power of all mining computers on that day to determine whether the amount of ore pool is mined out on that day. If the total amount issued on that day is not mined, it will be accumulated to the next day's total ore pool and mined together.
2.
How to learn high school mathematics well? First of all, we need to summarize the skills of answering questions
now the subject of mathematics is also a must to learn content, but now there are many children do not like this subject, because they can not do these questions, leading to the subject pull their total score, how to learn high school mathematics? What are the types of math problems
How to learn high school mathematics well also needs us to explore some learning skills and find our own suitable methods, which is still very important3. Ryzen is used in CAD. Many people say that Caton is not as good as toothpaste factory. Although ryzen has the same price, it's a powerful calculation, but it should be an optimization problem
4. 
The SEI tower angle of the force in the left figure depends on the accumulation (in fact, you can also push it out by extending g to the bottom)
look at the right side and summarize it into words, which should be easier to understand than the figure
< P >
5.
Now many students' math scores are not very high, which lowers the overall average score, so many students will do a lot of exercises to improve this problem, so the more junior high school math exercises do, the higher the score will be
math exercises
when doing junior high school math exercises, parents should not let their children do too much, they need to give their children a certain rest time to prevent their children from overwork, which will only make their scores fall and not rise, Therefore, only after making a detailed plan can we improve children's scores and learning habits to a certain extent, which has a great impact on children's future
6.
How to learn high school mathematics well? First of all, we need to summarize the skills of answering questions
now the subject of mathematics is also a must to learn content, but now there are many children do not like this subject, because they can not do these questions, leading to the subject pull their total score, how to learn high school mathematics? What are the types of math problems
How to learn high school mathematics well also needs us to explore some learning skills and find our own suitable methods, which is still very important7.
How to learn high school mathematics well? First of all, we need to summarize the skills of answering questions
now the subject of mathematics is also a must to learn content, but now there are many children do not like this subject, because they can not do these questions, leading to the subject pull their total score, how to learn high school mathematics? What are the types of math problems
How to learn high school mathematics well also needs us to explore some learning skills and find our own suitable methods, which is still very important8. If you are with me, I don't want you. You are very mechanical, but there are several things you must understand. First, the compulsory measures for steel structure. Second, the structure of steel structure. Go to the Internet or your colleagues to the node. In fact, there are only two types of steel structure node, welding and bolting. I think it's very simple. Now all things are calculated by electronic calculation program. Network arts has excel calculation table, node calculation program and so on. Netease structure network has exe node calculation program, which is compiled by some people. With these things, it's OK to modify the number according to the specification. The calculation includes PKPM, 3D3S, the node calculation includes MTS toolbox, Lizheng toolbox, etc. But after the drawing is finished, it's OK to give it to the chief engineer for review! Step by step! Go to Netease structure network or some of the same website to see what other people have questions, and how to solve them! If you can't take the first step, you will always be standing still. The design is rigorous, but for beginners, when they are rigorous, they should think more about why they do it. Buy some books appropriately. Now many of these books are for beginners or review books for registered structure books. I tell myself that I can solve one problem every day. Maybe I'm not very good one year later. What if I can solve 3000 problems 10 years later? I guess it's a know it all. Finally, good luck!
9. 1、 Lay a solid foundation of mathematics
the basic knowledge of junior high school mathematics refers to the concepts, rules, formulas, theorems and other necessary contents in mathematics textbooks, as well as the mathematical thinking methods contained therein, and also includes the experience of learning mathematics and solving problems, specifically in the following aspects:
1 Formula, theorem, grasp the internal relationship between them
for example, if the fraction is meaningless, what is the value range of X? Some students fill in x = 3, which is wrong. Because there is a concept here, that is, the concept of meaninglessness of fractions and a rule for calculating absolute values. Only by fully understanding and mastering this concept and a rule, can we know that | x | - 9 = 0 and solve X= ± 3. And because mathematics is a highly coherent subject, the correct grasp of the absolute value will lay a good foundation for us to learn quadratic radical in the second grade and irrational equation in the third grade. Therefore, if you encounter difficulties in learning a certain content or solving a problem, it is very likely that it is because you have not mastered some basic knowledge well. Therefore, you should pay attention to checking and filling the gaps, find problems and solve them in time, and strive to find a problem and solve a problem in time. Only when we have a solid foundation can we improve our performance
2. Cultivate the ability of mathematical operation and good study habits
after each test, we often hear some students say: I was careless again in this test. One of the most careless phenomena is the mistakes made by skipping steps, and the mistakes are not corrected. This is actually a bad study habits, fast psychology caused by mathematical operation skills. We should know that every step of a mathematical problem is completed in accordance with certain rules. If a certain step is ignored in the process of solving the problem, then the rule of this step will not be used correctly, resulting in wrong solutions. Therefore, fundamentally speaking, the improvement of operation ability is to understand "calculation theory", not only know how to calculate, but also know why to do so, so as to grasp the direction, way and procere of operation, and complete it step by step carefully, so as to form accurate and fast operation ability. Students should pay attention to that if you have the above phenomenon of jumping step, you should correct it in time, otherwise in the long run, you will have a fear that you will make mistakes before you start to solve the problem, and the more mistakes you will make. Students with such feelings must quickly get out of the misunderstanding, so that the efficiency of learning can grow graally
3. Learn some necessary testing methods and cultivate your own thinking of seeking differences
there is an old Chinese saying: "one hundred secrets is sparse.". Oversight is inevitable, if there are a variety of inspection means, then it can be done without fail. So how to master a variety of testing methods? This requires us to consciously train our thinking of seeking differences in our daily study. If a mathematical problem requires not the result of calculation, but the method or way to solve it, there is not only one way to solve it, but also many ways to solve it. This kind of situation belongs to the application of different thinking. For example, when we divide a square into four equal parts, the students usually use these methods: divide it into four equal small squares, or divide it into four congruent isosceles right triangles. Should we ask ourselves if we have any more? We can never be satisfied with finding one or two and thinking that we are successful. In fact, there are still many ways to do it. Can you find it? This is the thinking of seeking difference. There are many questions. Although he has only one answer, it is very beneficial for the development of our creative thinking if we consider solving them in various ways< In mathematics, the formation of a mathematical concept, the establishment of a mathematical proposition, and the solution of a question usually go through the process of observation, comparison, analysis, synthesis, generalization, abstraction, inction, and dection of the concept, proposition, or question. All these require thinking activities in the mind, In order to improve their logical thinking ability, students should do the following:
1. Strictly abide by the law of thinking, develop rigorous thinking habits
it is the core of logical thinking to strictly abide by the law of thinking, to reason rigorously, and to say things according to facts. This first requires us to accurately use the concept, definition or theorem, formula, can be logical judgment. We often encounter such a situation, when we prove that two angles are equal, there is a method called "equilateral equal angle". If we don't notice that its premise is in the same triangle, we will make mistakes, or make mistakes when we can't solve the problem, resulting in a series of problems, such as changing propositions, falsely selecting arguments, self contradiction, circular argument and so on, To solve problems in strict accordance with the correct way of thinking, we should treat the mistakes in our study strictly, never be careless, and cultivate our rigorous and realistic thinking habits
2. Pay attention to the process of knowledge acquisition, and cultivate the ability of abstraction, generalization, analysis and synthesis, reasoning and proof. When teachers explain formulas, theorems and concepts in class, they usually reveal their formation process, but this process is most easily ignored by students. They think: I just need to understand the theorem itself, and then it will be used. I don't need to know how they got it. It is wrong to think like this. Because in the process of explaining the formation and occurrence of knowledge, what teachers explain is a thinking process of problems, and what they reveal is an idea and method of solving problems, which includes the ability of abstraction, generalization, analysis, synthesis, reasoning and so on. If we don't pay attention to it, we will lose an opportunity to learn from it and develop our logical thinking ability. The above are some methods of mathematics learning for students' reference
the improvement of mathematics scores and the mastery of mathematics methods are inseparable from the students' good learning habits, so in the end, we will discuss the learning habits of mathematics
good mathematics learning habits include listening, reading, exploring and homework. Listen. We should grasp the main contradictions and problems in the class, think synchronously with the teacher's explanation as far as possible, and take notes when necessary. At the end of each class, we should think deeply and summarize, so as to achieve one lesson and one result
reading. When reading, we should carefully consider and understand every concept, theorem and rule. For examples, we should also learn together with similar reference books, learn from others, increase knowledge and develop thinking. explore. We should learn to think, explore some new methods after the problem is solved, learn to think from different angles, and even change the conditions or conclusions to find new problems. After a period of study, we should sort out our own ideas to form our own thinking rules
homework. We should first review the homework, first think and then write. We should do the first kind of questions and understand a large area. The homework should be serious and the writing should be standardized. Only in this way can we learn mathematics well.
the basic knowledge of junior high school mathematics refers to the concepts, rules, formulas, theorems and other necessary contents in mathematics textbooks, as well as the mathematical thinking methods contained therein, and also includes the experience of learning mathematics and solving problems, specifically in the following aspects:
1 Formula, theorem, grasp the internal relationship between them
for example, if the fraction is meaningless, what is the value range of X? Some students fill in x = 3, which is wrong. Because there is a concept here, that is, the concept of meaninglessness of fractions and a rule for calculating absolute values. Only by fully understanding and mastering this concept and a rule, can we know that | x | - 9 = 0 and solve X= ± 3. And because mathematics is a highly coherent subject, the correct grasp of the absolute value will lay a good foundation for us to learn quadratic radical in the second grade and irrational equation in the third grade. Therefore, if you encounter difficulties in learning a certain content or solving a problem, it is very likely that it is because you have not mastered some basic knowledge well. Therefore, you should pay attention to checking and filling the gaps, find problems and solve them in time, and strive to find a problem and solve a problem in time. Only when we have a solid foundation can we improve our performance
2. Cultivate the ability of mathematical operation and good study habits
after each test, we often hear some students say: I was careless again in this test. One of the most careless phenomena is the mistakes made by skipping steps, and the mistakes are not corrected. This is actually a bad study habits, fast psychology caused by mathematical operation skills. We should know that every step of a mathematical problem is completed in accordance with certain rules. If a certain step is ignored in the process of solving the problem, then the rule of this step will not be used correctly, resulting in wrong solutions. Therefore, fundamentally speaking, the improvement of operation ability is to understand "calculation theory", not only know how to calculate, but also know why to do so, so as to grasp the direction, way and procere of operation, and complete it step by step carefully, so as to form accurate and fast operation ability. Students should pay attention to that if you have the above phenomenon of jumping step, you should correct it in time, otherwise in the long run, you will have a fear that you will make mistakes before you start to solve the problem, and the more mistakes you will make. Students with such feelings must quickly get out of the misunderstanding, so that the efficiency of learning can grow graally
3. Learn some necessary testing methods and cultivate your own thinking of seeking differences
there is an old Chinese saying: "one hundred secrets is sparse.". Oversight is inevitable, if there are a variety of inspection means, then it can be done without fail. So how to master a variety of testing methods? This requires us to consciously train our thinking of seeking differences in our daily study. If a mathematical problem requires not the result of calculation, but the method or way to solve it, there is not only one way to solve it, but also many ways to solve it. This kind of situation belongs to the application of different thinking. For example, when we divide a square into four equal parts, the students usually use these methods: divide it into four equal small squares, or divide it into four congruent isosceles right triangles. Should we ask ourselves if we have any more? We can never be satisfied with finding one or two and thinking that we are successful. In fact, there are still many ways to do it. Can you find it? This is the thinking of seeking difference. There are many questions. Although he has only one answer, it is very beneficial for the development of our creative thinking if we consider solving them in various ways< In mathematics, the formation of a mathematical concept, the establishment of a mathematical proposition, and the solution of a question usually go through the process of observation, comparison, analysis, synthesis, generalization, abstraction, inction, and dection of the concept, proposition, or question. All these require thinking activities in the mind, In order to improve their logical thinking ability, students should do the following:
1. Strictly abide by the law of thinking, develop rigorous thinking habits
it is the core of logical thinking to strictly abide by the law of thinking, to reason rigorously, and to say things according to facts. This first requires us to accurately use the concept, definition or theorem, formula, can be logical judgment. We often encounter such a situation, when we prove that two angles are equal, there is a method called "equilateral equal angle". If we don't notice that its premise is in the same triangle, we will make mistakes, or make mistakes when we can't solve the problem, resulting in a series of problems, such as changing propositions, falsely selecting arguments, self contradiction, circular argument and so on, To solve problems in strict accordance with the correct way of thinking, we should treat the mistakes in our study strictly, never be careless, and cultivate our rigorous and realistic thinking habits
2. Pay attention to the process of knowledge acquisition, and cultivate the ability of abstraction, generalization, analysis and synthesis, reasoning and proof. When teachers explain formulas, theorems and concepts in class, they usually reveal their formation process, but this process is most easily ignored by students. They think: I just need to understand the theorem itself, and then it will be used. I don't need to know how they got it. It is wrong to think like this. Because in the process of explaining the formation and occurrence of knowledge, what teachers explain is a thinking process of problems, and what they reveal is an idea and method of solving problems, which includes the ability of abstraction, generalization, analysis, synthesis, reasoning and so on. If we don't pay attention to it, we will lose an opportunity to learn from it and develop our logical thinking ability. The above are some methods of mathematics learning for students' reference
the improvement of mathematics scores and the mastery of mathematics methods are inseparable from the students' good learning habits, so in the end, we will discuss the learning habits of mathematics
good mathematics learning habits include listening, reading, exploring and homework. Listen. We should grasp the main contradictions and problems in the class, think synchronously with the teacher's explanation as far as possible, and take notes when necessary. At the end of each class, we should think deeply and summarize, so as to achieve one lesson and one result
reading. When reading, we should carefully consider and understand every concept, theorem and rule. For examples, we should also learn together with similar reference books, learn from others, increase knowledge and develop thinking. explore. We should learn to think, explore some new methods after the problem is solved, learn to think from different angles, and even change the conditions or conclusions to find new problems. After a period of study, we should sort out our own ideas to form our own thinking rules
homework. We should first review the homework, first think and then write. We should do the first kind of questions and understand a large area. The homework should be serious and the writing should be standardized. Only in this way can we learn mathematics well.
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