Average calculation power
solve the problem in an all-round way
1. Miracle Moore's Linux kernel has been deeply optimized for more than 200 times to avoid the problem that some hardware failures will directly lead to system crash
2. In view of the situation that many mining software in the market can't connect to the mining pool after restart, miracle Moore perfectly solves the problem by using the function of resetting the image after each restart of the mining machine
3. After testing, the average computing power error and delay share of miracle Moore system in each mine pool are not more than 1.5%, which significantly improves the mining revenue of users
4. After numerous experiments, miracle Moore development team has obtained the optimized VBIOS overclocking setting of graphics card. Compared with the traditional overclocking method, it can further improve the computing power of graphics card by 5% and rece the power consumption by 15%!
Ha Yu miner, windows can mine with one click, and it hasn't pumped water yet. At the same time, they also have an app that can monitor your machine at any time
linux system can also mine, two-step setting can mine
Mining in two steps by Linux system
< UL >open the website, input the mobile phone number, select how many CPUs you want to use to mine, the default is to use 50% of the CPU to mine, click to generate your exclusive command and
is such a simple operation
the mining pool is the necessary infrastructure for the exploitation of P2P cryptography virtual currency such as bitcoin (digital currency). It is generally an open team mining server. Its significance is to improve the stability of bitcoin mining and stabilize the miners' salary. At present, the most powerful mining pools in the world are f2pool, antpool, BW pool, BTCC pool and bitfury. Except for bitfury, the rest are from China
with more and more people participating in mining, the computing power of bitcoin network is rising, and it is difficult for a single device or a small amount of computing power to dig bitcoin again. At this time, the mine pool was born
operation principle of bitcoin mine pool
the ore pool is responsible for information packaging, and the access mine is responsible for competing for bookkeeping rights
e to the collection of the computing power of many miners, the computing power of the mine pool accounts for a large proportion, and the probability of digging bitcoin is higher
for example
suppose 1 million people participate in bitcoin mining, and the whole network has 400p computing power, of which 90% of the miners have less than 1p (1000t) computing power. If a 1t miner is put into operation, it will account for 1.400000 of the whole network's computing power. Theoretically, every 400000 10 minutes can dig a block, that is, only 7.6 years can dig a block, and then get 50 bitcoins at a time
then, if I find another 9 miners with 1t dynamometer and reach an agreement, we will have a total of 10 people, and any one of them will be divided equally according to the proportion of each person's computing power, then we are a whole. With a total of 10t computing power, we can dig a block in 0.76 years on average, Then we have five bitcoins mined in 0.76 years. What if we organize 100 people, 1000 people, 10000 people or even 100000 people
if it is 100000 people, I can dig one block in 100 minutes on average. As a member of the team, my income will tend to be stable
this is the basic principle of the mine pool, that is, everyone forms a team to mine bitcoin, you can refer to the "buy together" in the lottery
of course, the above is only a simple description of the basic principles and properties of the ore pool, and the actual situation will be very complicated
the ore pool is a fully automatic mining platform, that is, the ore machine is connected to the ore pool to provide computing power and obtain profits
the bitcoin reward generated by mining in the mine pool will be distributed according to the proportion of each miner's contribution to computing power
compared with single mining, adding to the ore pool can obtain more stable income
I hope this answer will help you2. Digital currency is a kind of unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form
response time: January 4, 2021. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
the examiner of ACCA will tell the formula of all questions involving complex formula
although the subjects of ACCA are vicious, the requirements for mathematical calculation are not high. It mainly tests some logical thinking, and there will be basic calculation. However, the examiners of all the subjects involving complex formulas in ACCA will tell us the formula. Therefore, as long as we master the basic knowledge points, we can know some basic mathematical calculation
ACCA students often have divergent views on data analysis in most strategy documents. ACCA examiners hope that students can not only calculate the key numbers and movements in the data provided, but also use the information in the situation and any appropriate inference in the text to interpret the data. Students tend to be strong in one field, but not in another<
start from the foundation:
the key to success in ACCA is to start from the foundation. Save fancy stuff when you've accumulated markers and you're close to the end of available time
starting with sales changes and gross profit margin, it is very important to evaluate business performance. Calculating this shouldn't be a problem, but after calculating them, you can look for the key drivers / reasons for the change
sales can be regarded as a mixture of quantity and price. Most scenarios will provide data about the number of houses sold, for example, houses sold; Passengers fly. Some comparative price data may be percentage commission; Percentage of first year wages; The average price of air tickets in a year
even if you only raise price / quantity issues that affect sales, you can see a significant improvement in the quality of analysis. Although a better answer would be to find the action (if possible) and gain insight into the sales review, identify the key drivers of volume change and speculate whether it's not just price
identify any new data sources for the year, which is a new source of revenue and may help to develop an open line of "x% sales growth"
for example, if a company starts to provide maintenance contracts for procts sold this year, the revenue and profit of this year may be better, which will distort your data. This should encourage you to make further calculations to eliminate new revenue streams and ensure that we make similar comparisons. Please note that the specific data of last year may not be this year. For example, if the key contract was lost at the end of last year, a similar approach is needed
there may also be an opportunity to determine the difference between the procts sold and the maintenance contract, which is undoubtedly a different profit margin, further increasing the number of calculations in the answer. If cost information is not available, you can briefly suggest that this additional information is useful for further analysis of business performance before continuing
look for other non-financial information, maybe provide the number of employees, so calculate the sales (or profit) of each employee to see if the business has effectively realized these additional sales. In terms of cost, the total number of hours used can be given, which can be used with sales to calculate the hours per unit
if you mention variable costs, why not discuss fixed costs? Here, we calculate the change and try to use the scheme to explain the possible reasons for the change of fixed cost
consider the sales mix between two or three major procts / services to be sold. Food and beverage sales, manicure and pedicure, snooker hour to pool time. Calculating the weight of income or quantity helps to determine the trend of change and the root cause of performance
if the data allows, this can be linked to the profitability of each proct - if the share of high margin procts in the overall sales portfolio declines, it will cause concern
admit any small, seemingly insignificant number. Auditing students can be difficult to do on their own. It will still affect the performance of the organization. Sales of swimming equipment in local leisure centers; Duty free sales on aircraft; Gift shop sales of sports events.
1. Understand the significance of calculation in life
it is mentioned in the new curriculum standard that computing teaching should be connected with students' real life, so that students can feel that some practical problems can be solved through computing. Only with this understanding can students have the desire and interest to learn computing. For example, we can ask students to estimate which answer is close to their age A. 200 points; B. 200 weeks; C. 200 hours; D. 200 months.) Students may use different methods to guess. At this point, teachers can further guide students how to know their guess is accurate or more accurate. In order to answer this question, students will carry out the necessary calculation, so as to realize the necessity of calculation and generate interest in learning calculation. For another example, after teaching decimal multiplication, the students were given an assignment: go to the vegetable market to buy a dish, and compare with the seller who can calculate accurately and quickly. If you can't do it, ask them how to do it, and have a deeper understanding of the calculation method of decimal multiplication, so that students can understand the significance of calculation in life and stimulate their interest in further learning calculation
2
the teaching of the new curriculum focuses on making students experience and understand mathematics in real situations. In teaching, we should create a learning situation which is closely related to students' living environment and knowledge background, and which is also of interest to students, so that students can experience mathematics in the learning process, obtain positive emotional experience, feel the power of mathematics, and master the necessary basic knowledge and basic skills. The information of the problems that people come into contact with in real life is often multi-channel, dialogue, media, signs, advertising and so on may present information; The way of presentation may be written, tabular or pictorial. Therefore, in teaching, we should pay attention to providing information in various forms (such as tables, graphics, comics, dialogues and words) intuitively and vividly, presenting the contents of teaching materials vividly and interestingly, improving students' interest in learning and meeting students' diversified learning needs. In teaching, teachers should consciously contact with students' life experience and reality, flexibly deal with teaching content and change the presentation of teaching content. For example, we can create a learning situation similar to the reality: in the teaching of elementary school mathematics volume 9 decimal multiplication, the example "6.5 yuan per meter of cloth, how much does it cost to buy 5 meters?" National Day is coming, the teacher has to call his cousin who works in Beijing. It's 1.2 yuan per minute for a domestic long-distance call. The teacher estimates that it will take six minutes to make a call. How much will it cost altogether Through the organic adaptation of examples in connection with the reality of life, students can experience and understand mathematics in the rich flavor of life. In addition, students are very willing to help teachers solve problems, they are also interested in learning new knowledge. The presentation of solving problems in life is concive to stimulate students' interest in learning
3. Give students successful experience and fair evaluation, and cultivate positive learning attitude
the purpose of evaluation defined in the new curriculum standard is to fully understand students' learning situation, stimulate students' learning enthusiasm, and promote students' all-round development. The evaluation of students should not only pay attention to the understanding and mastery of students' knowledge and skills, but also pay attention to the formation and development of their emotions and attitudes; We should not only pay attention to the results of students' mathematics learning, but also pay attention to their exploration and development in the learning process, and pay attention to the ability of students to find and solve problems. For example, teachers can choose the way of classroom observation to investigate students from four aspects: the seriousness of learning, the mastery of basic knowledge and skills, problem-solving and cooperative communication. Teachers can also learn students' learning attitude and awareness of cooperation and communication from learning activities, understand students' mastery of computing skills from their homework, and understand students' ability to ask and solve problems from their growth records
in addition, the subjects and methods of evaluation should be diversified. Teachers should timely give positive evaluation to students, and they can also communicate with parents to give timely evaluation. Only by giving students experience and fair and timely evaluation in the teaching of computing, can students obtain successful experience, establish the confidence of learning computing well and stimulate their interest in learning< Second, to cultivate students' ability of understanding calculation and solving practical problems with calculation
(1) focus on the understanding of the meaning of operation
in the new curriculum standard, it is emphasized that "the sense of number should be further cultivated by solving practical problems to enhance students' understanding of the meaning of operation" and "the students should experience the process of abstracting the quantitative relationship from practical problems and using the knowledge they have learned to solve problems". The calculation content of the new curriculum focuses on making students experience the process of abstracting operation from the actual situation and pay attention to the understanding of the meaning of operation; Establish the internal relationship between practical operation and mathematical operation, so that students can proce intuitive experience in practical operation, find the realistic background of number operation, promote students to understand the meaning and nature of operation, and consciously apply it to solve application problems. For example, when teaching "perimeter calculation of rectangle and square", we should pay attention to students' understanding of the meaning of perimeter. In teaching, we can let students guess the meaning of perimeter, and let students understand the perimeter of various graphics (rectangle, square, triangle, circle, stair shape graphics, irregular graphics) by touching, Then let the students use various ways to explore the strategy of perimeter, independently complete the calculation of square, rectangular perimeter. Finally, through communication, the optimization calculation method is summarized. This design can make students deeply understand the meaning of perimeter, get the calculation method of perimeter through operation, and master the skills of calculating the perimeter of rectangle and square< (2) pay attention to estimation and be good at verifying the rationality of calculation results
the new mathematics curriculum standard clearly points out that the calculation teaching should pay attention to the mental calculation, strengthen the estimation, and weaken the written calculation. In the modern society, complex calculation can be completed by computer or calculator, and the role of estimation in daily life and work is more and more prominent. For example, people in the use of tools for calculation, e to operational errors will make the calculation results have great errors, which requires people to have a certain estimation ability, to judge the rationality of the calculation results, and to explain its rationality. In addition, estimating the results before calculation can make students think in a variety of ways reasonably and flexibly; Estimating the results after calculation can make students get the most valuable test results. So estimation ability is the need of modern social life, and it is an important standard to measure people's computing ability. It has become a worldwide trend to attach importance to and strengthen estimation. Estimation ability is an indispensable part of calculation ability. Students' estimation consciousness and ability are directly related to the strength of calculation ability, and even affect their mathematical ability. For example, the application question "soy sauce 1.2 yuan per kg, Xiaoming buy 3 kg, pay 5 yuan, how much can you get back?" The fifth grade students are counted as "still can find 24 yuan"; It is not so much that students lack of life experience and careless calculation that they are not good at verifying the rationality of calculation results. For another example, when calculating the average, if students use the estimation, they can grasp the range of the calculation results in advance and verify the rationality of the calculation results. There will be no jokes or mistakes like the average height of the whole class is more than ten centimeters and the average age of the elderly in the nursing home is only seven or eight years old. The reason why students make such mistakes is that teachers do not attach importance to estimation in their teaching. Therefore, in the process of calculation teaching, we should consciously carry out estimation teaching
at the same time, estimation is also concive to the development of students' thinking ability. Because estimation needs to observe, analyze and think about problems, and the process of estimation is also the process of logical thinking, which is concive to the development of students' thinking ability. It is an inevitable trend to strengthen the teaching of estimation in primary school mathematics teaching reform and development
(3) encourage the diversification of computation and deepen the understanding of computation
in the process of trying to calculate, students often proce different calculation methods from their own life experience and thinking point of view. The traditional teaching often ignores these different methods and directly introces them to the general calculation method. In the calculation teaching of the new curriculum, we should respect each student's personality, allow different students to understand problems from different angles, express their ideas in different ways, and solve problems with different knowledge and methods. Encouraging the diversification of problem-solving strategies is an effective way to teach students in accordance with their aptitude and promote the full development of every student. At the same time, all students can benefit from the way of listening and feedback to others. In addition, the strategies used by students also show teachers their way of thinking and level of thinking, so that teachers have the opportunity to reflect and improve their teaching. For example, when learning double-digit multiplication, students can be encouraged to use their existing knowledge background to explore the calculation results. It is not appropriate for teachers to demonstrate first, explain the rules and processing principles of vertical written calculation, and limit students' thinking. For example, how many bottles are there in a box of 24 bottles and 18 bottles? First ask the students to estimate how many bottles there are, then try to work out the result. Students may have some of the above algorithms:
24 × 10+24 × 8＝432，240 × 20-24 × 2
20 × 18+4 × 18＝432，24 × two × 9＝432
24 × three × 6＝432，18 × four × 6
there may also be students who can calculate the results in vertical form. On the basis of students' independent thinking and solving this computing problem, each student can express his own point of view, listen to the opinions of peers, and feel the diversity and flexibility of problem solving. Different students get different development, and some students may grasp a variety of different methods to deepen their understanding of computing
in addition, in the teaching of encouraging students to diversify their algorithms, we should also pay attention to giving students enough time to think independently and explore calculation methods, pay attention to the communication between students, reflect in the process of expression and listening, and finally choose and graally grasp the methods suitable for them. On the basis of students' autonomous consciousness of algorithm diversification, we advocate the optimization of calculation methods, and then strengthen the autonomous consciousness of algorithm optimization. Because the optimization of the algorithm is a process of graal perception, in this process, teachers can not impose the best method on students, teachers should guide students to find the most suitable method on the basis of diversity. The optimization of a variety of algorithms is the extension of algorithm diversification strategy. Algorithm diversification advocates a kind of exploration and a kind of thinking innovation, while optimization is to refine the results of exploration and realize the second innovation. Our teaching is both
ACCA is a vicious examination subject, but it doesn't have high requirements for mathematical calculation. It mainly tests some logical thinking, and basic calculation will be available. However, the examiner of ACCA will tell us the formula for all the questions involving complex formula. Therefore, as long as we can master the basic knowledge, we can know some basic mathematical calculation
ACCA students often have divergent opinions on data analysis in most strategy documents. ACCA examiners hope that students can not only calculate the key numbers and movements in the data provided, but also use the information in the situation and any appropriate inference in the text to interpret the data. Students tend to be strong in one field, but not in another
< H2 > start from the foundation:the key to success in ACCA is to start from the foundation. Save fancy stuff when you've accumulated markers and you're close to the end of available time
starting with sales change and gross profit margin, it is very important to evaluate business performance. Calculating this shouldn't be a problem, but after calculating them, you can look for the key drivers / reasons for the change
sales can be regarded as a mixture of quantity and price. Most scenarios will provide data about the number of houses sold, for example, houses sold; Passengers fly. Some comparative price data may be percentage commission; Percentage of first year wages; The average price of air tickets in a year
even if you only raise price / quantity issues that affect sales, you can see a significant improvement in the quality of analysis. Although a better answer would be to find the action (if possible) and gain insight into the sales review, identify the key drivers of volume change and speculate whether it's not just price
identify any new data sources for the year, which is a new source of revenue and may help to develop an open line of "sales growth x%"
for example, if a company starts to provide maintenance contracts for procts sold this year, the revenue and profit this year may be better, which will distort your data. This should encourage you to make further calculations to eliminate new revenue streams and ensure that we make similar comparisons. Please note that the specific data of last year may not be this year. For example, if the key contract was lost at the end of last year, a similar approach is needed
there may also be an opportunity to determine the difference between the procts sold and the maintenance contract, which is undoubtedly a different profit margin, further improving the number of calculations in the answer. If cost information is not available, you can briefly suggest that this additional information is useful for further analysis of business performance before continuing
look for other non-financial information, maybe provide the number of employees, so calculate the sales (or profit) of each employee to find out whether the business has effectively realized these additional sales. In terms of cost, the total number of hours used can be given, which can be used with sales to calculate the hours per unit
if you mention variable cost, why not discuss fixed cost? Here, we calculate the change and try to use the scheme to explain the possible reasons for the change of fixed cost
consider the sales mix between two or three major procts / services to be sold. Food and beverage sales, manicure and pedicure, snooker hour to pool time. Calculating the weight of income or quantity helps to determine the trend of change and the root cause of performance
if the data allows, this can be linked to the profitability of each proct - if the share of high margin procts in the overall sales portfolio declines, it will cause concern
admit any small, seemingly insignificant / insignificant number. Auditing students can be difficult to do on their own. It will still affect the performance of the organization. Sales of swimming equipment in local leisure centers; Duty free sales on aircraft; Gift shop sales of sports events