Initial calculation force

1. The double precision values of 480 and 580 are basically the same, which are 1 / 16 of the single precision, about 360gflops. In fact, these two cards are not easy to use. The double precision of 280x is three times that of this, about 1000gflops.

2. Super computing power and small currency beast exchange are cooperative relations. Super computing power's SPT has been listed in small currency beast exchange, and SPT can be freely traded by hanging orders.

3. 1. If there are multiple cubes in your cube, then follow the mouse model, use ray on the model, and the cube touched by ray changes (such as color darkening)
2. Draw multiple cubes, arrange them in order, name them, and remove the meshender attribute (no rendering), which is equivalent to drawing a grid, which is easy to understand
3. It's troublesome to judge the range with two-dimensional array (mainly integer), The simple way is that the computer obtains the original coordinates of the model (such as the center point of the model). When the absolute value of the x value (and y value) of the mouse's real-time coordinates minus the original coordinates is equal to the side length of the square, the square (or other dry points) will be displayed with the real-time coordinates as the center, The real-time coordinates are used as the original coordinates for the next step

4. DTF digital gold computing power mining mode
players save money to convert the computing power, which can continuously mine
after the currency is saved in the calculation force area, it is converted into calculation force. The initial force ratio is 1:0.9
for example, user a deposits 100 coins into the computing power area to get 90 computing power
0.8% of the daily profit from 100 calculation. That's 0.72 yuan a day
the total amount is 54 million, the company holds 5 million pieces, the first one million pieces, there is no false issue, only real virtual currency
DTF mining area: 1.5 million in a mining area, 3.4 million in B mining area, 6.8 million in C mining area, 12.7 million in D mining area, E mining area is 23.6 million yuan
the mode of graal decrease in the calculation power generated by each mining area's holding currency
a mining area: the conversion rate of saving currency and calculation power is 1:1
b mining area: the conversion rate of saving currency and calculation power is 1:0.9
C mining area: the conversion rate of saving currency and calculation power is 1:0.8
D Mining Area: the conversion rate of saving currency and calculation power is 1:0.7
e mining area: the conversion rate of saving currency and calculation power is 1:0.6

5. The first grade of junior high school is the initial grade of junior high school. Some students are used to the oral arithmetic of primary school. When they get to junior high school, they also follow the method of primary school completely. There is no process of calculation, and the error rate is very high. Some students always think that the calculation problem is much easier than the analytical application problem. They always think that the calculation is an easy thing, so they are too confident or unable to concentrate in the calculation, and the results are full of mistakes. For junior high school students, it is a very important aspect of junior high school mathematics teaching to strengthen calculation teaching, cultivate good calculation habits and effectively improve the accuracy of calculation. Next, I will analyze the reasons for the low calculation accuracy and how to improve the calculation ability< First, the reasons for the low accuracy rate of calculation
1. Bad learning habits: many junior high school students have been to Olympiad Mathematics in primary school, and they are used to using fixed formulas to calculate, so many simple calculations come to the answer in one step, without any calculation process, so many calculation children don't understand the whole process, they just pay attention to the answer, There is no emphasis on the generation of knowledge
2. Unreasonable use of thinking mode: compared with primary school, junior high school mathematics has a leap in the depth, breadth and ability of knowledge, such as the introction of negative numbers, the use of letters to express numbers, the formation of spatial concepts, and the knowledge of functions, which are obviously different from the old knowledge. Some students' thinking still stays in the way of primary school thinking, and can not carry out divergent thinking Abstract thinking, etc
3. Unreasonable learning methods: many junior high school students have not mastered good learning methods, but only attach importance to the results, despise the process, be eager for success, be careless, have little knowledge of concepts, rules, formulas and theorems, mechanically imitate and memorize them by rote. The application of knowledge points is not in place
therefore, the problem of improving computing power is a comprehensive problem. To improve students' computing ability, I think we should start from the following aspects:
Second, we should pay attention to students' Ideological Ecation and form good habits.
many junior high school students who have just entered middle school live in school for the first time, live without their parents for the first time, and depend on themselves for the first time. Children are in an important turning point. On the one hand, they have strong curiosity, love to talk, love to move, and are competitive. The motivation of learning comes from interest and passion, and the harvest comes from "unintentional". On the other hand, they have poor self-consciousness, weak self-control, great emotional fluctuation, and unstable motivation and effect. Strong interest is the premise of learning mathematics well< The introction of negative sign and sign rule is an important starting point of algebra operation. In addition to understanding, we should pay special attention to its application points. For example, when learning rational number operation, grade one students in junior high school should emphasize that "first determine the symbol, then calculate, observe the characteristics, and then start", that is, first determine the symbol of each operation or result, and then calculate its absolute value; When calculating, first observe the characteristics of the topic, choose the appropriate method, in order to calculate simple and fast. At the beginning, some students can't flexibly use the multiplication algorithm to solve the problem according to the characteristics of the problem. Instead, they use the algorithm of the same level to change the score into a decimal (or decimal into a fraction) and then calculate it from left to right. We can let children use different calculation methods, and then let them feel for themselves which kind of calculation is simple and fast
2. The main obstacle for students to perceive letters is that they are easily influenced by the fixed pattern of primary school arithmetic. For example, students think a is a positive number and always think - a must be a negative number. If we compare the size of 4A and 2a, students are more susceptible to 4 & gt; 2, while ignoring the essential attribute that a can be positive, negative and zero, the wrong judgment is 4A & gt; 2a, ignoring 4A = 2A (when
A = 0); Or 4A & lt; 2A (when a & lt
0). Therefore, we should highlight what rational number a is in teaching, and try our best to let children give examples in teaching, so that their understanding can develop from the outside to the inside, from the concrete to the abstract.
Fourth, we should strengthen the teaching of basic knowledge
the combination of calculation ability and thinking ability, including analyzing operation conditions, exploring operation direction, and selecting operation formula, A series of processes such as determining a reasonable operation method, etc. Middle school mathematics is to cultivate students' computing ability, rather than just mechanically applying formulas. If there is an error in calculation, we often hear students blame themselves for "carelessness, not seeing the title clearly, ing wrong numbers, etc." of course, we can't rule out the error caused by carelessness in indivial cases, but solving problems often "carelessness", which is not just "carelessness". At the same time, it reflects the confusion and fuzziness of basic knowledge. Basic knowledge is not hard, which is often the root cause of calculation errors, so strengthening basic teaching is a very practical problem to improve calculation ability:
1. Correctly understand the concept. Memorizing some important formulas, rules and theorems accurately is the basic requirement of operation, and memorizing them correctly is the premise of accurate calculation. And can grasp the formula derivation, only understand some concepts and formula derivation, in order to achieve the positive use, reverse use and flexible use of the formula, so as to improve the operation ability
2. Students are required to see each data and operation symbol clearly, determine the correct operation order, and choose a reasonable calculation method. In order to do a calculation problem correctly, we must first read the problem carefully, observe from multiple angles, think comprehensively, and pass the examination
3. At ordinary times, we should strengthen the training of students' mathematical thinking methods. Mathematical thought is the basic viewpoint of mathematics, the most essential and the highest level thing in mathematics. It is the source of the basic strategy to solve the rationality of operation and the soul of mathematical operation
4. Strengthen the calculation practice. In order to improve students' computing ability, it is necessary to carry out strict training. The students are required to form the habit of standard writing, writing neat, correct format, correct handwriting, do not scribble, do not alter, keep the homework neat and beautiful. We should be confident and strive to be right once; Slow down and think clearly before writing; Don't do mental arithmetic, don't jump, and write clearly on the draft paper. It is best to train children to complete a certain number of calculation problems within the specified time, and the accuracy must be guaranteed. This is a process of long-term adherence. Many parents always want their children to practice once or twice to achieve this. Being too eager for success will have the opposite effect
5. Strengthen the cultivation of students' habit of checking calculation questions accurately. Many children are still wrong after checking the calculation, or some directly change the correct one into the wrong one. To correct this bad habit, it is not enough to ask students to be careful, but also to improve their checking ability. The reason why students can't find out their problems is that they just look at one side or do the calculation again, instead of using the learned mathematical knowledge to do the calculation from different angles. The fact shows that this method of recalculation is not of great significance, and the students who can quickly judge the truth of the answers from all aspects will have a profound understanding of the problem and meaningful learning
6. Let the students put the problems that they often make mistakes in their daily life into the wrong problem set. They can often see which problems are easy to make mistakes in their daily life and correct them in the future< Fifth, strengthen reasoning training, pay attention to problem-solving strategies, and improve the simplicity of calculation
in normal teaching, we should strengthen reasoning training on the basis of students' mastery of basic knowledge. In normal practice, we need to be step by step based, with sufficient reasons, and pay attention to the order of calculation. Some students are lack of comparative consciousness, so they often find a way to do it, and think it's OK to do it right. Guide students to use conditions flexibly, improve the simplicity of operation, such as flexible use of concepts and formulas, flexible choice of operation ways, etc. The combination of number and shape can simplify the complex.

6. 1、 First of all, we need to change our ideas. Junior high school stage, especially junior high school third grade, through a lot of practice, can make your performance have obvious improvement, this is because junior high school mathematics knowledge is relatively simple, easier to master, through repeated practice, improve the proficiency, can improve performance, even so, some problems are not deep enough to understand or even do not understand. For example, in junior high school, when you ask | a | = 2, what is a equal to? Very few people make mistakes in the senior high school entrance examination. However, after entering senior high school, the teacher asks, if | a | = 2, and a < 0, then what is a equal to. Even students who are usually good at learning, some students will answer without thinking: a = 2. That's enough. High school mathematics is highly theoretical and abstract, so we need to work hard on the understanding of knowledge, think more and study more. 2、 The characteristics of high school mathematics are: Thinking reasoning, memory, operation 1, memory: some students think that mathematics is to do more questions, memory is a matter of liberal arts. In fact, there are many contents in mathematics that need to be memorized, such as definition, formula, theorem, axiom, typical method, key question type, knowledge network, etc. To learn mathematics well, we must take out a certain amount of time and energy to remember! But this memory can not be realized simply by reciting and reading several times. The memory of mathematical problems must be realized by thinking, solving a certain number of exercises, reasoning and summarizing. If we don't remember the basic knowledge formula, theorem and problem-solving method, or if we don't memorize them skillfully, it will lead to the slow speed of problem-solving, and even the test can't be finished. There is a phenomenon that the usual homework is well completed, and the test results are always unsatisfactory. This is closely related to the poor memory. Therefore, to learn mathematics well, we must first learn to remember and think. 2. Thinking: the most important thing to learn mathematics well is to learn to think and reason. Students who can't think and reason will never learn and can't do well in mathematics. Mathematical knowledge is like a chain. If one link is broken, the whole chain will be broken. If we can't think and reason reasonably, this chain can't be linked, and it's inflexible or even impossible to start. When we enter high school, we will soon learn trigonometric function. There are more than 30 trigonometric function formulas. These formulas are closely related and complement each other. If we can remember some of the main formulas, we can dece dozens of other formulas through reasoning. Otherwise, memorizing them by rote will bring us a great burden, and the effect is not necessarily good. To learn thinking and reasoning, these formulas are not difficult to remember. In high school mathematics learning, a small number of exercises can be directly substituted into the formula and solved reasonably. Most of the exercises can only be solved by reasoning the basic knowledge. If you don't know how to reason or are not good at reasoning, you can't solve the general mathematical problems correctly. Let me give you a familiar example. Xiao Li and Xiao Wang ran the 100 meter race. When Xiao Li reached the end of the track, Xiao Wang just ran to 95 meters. The second time Xiao Li stepped back 5 meters and ran with Xiao Wang again, who got to the end first? This example seems very simple, but it is easy to make mistakes and fall into the thinking trap if we blindly solve it. So, if you don't think and reason, the simplest problem may also embarrass you. Learning to think and reason is the key to solve high school mathematics problems accurately and efficiently. 3. Operation: in order to improve mathematics scores and test paper scores, it is necessary to improve operation ability. There are many students in the answer to the math questions quickly, clear thinking, and even happy after the test, think the question is not difficult, the result score is very low. Most of the reasons are poor computing ability Its poor computing ability refers to: the computing method is not simple, the computing steps are not standardized, accurate, scribbled, etc.) to improve the computing ability, we must work hard to temper ourselves: 1. Finish the homework assigned by the teacher on time, do not , do not delay; 2; (2) strictly require the steps to solve the problem. Generally, it is better to be more detailed; (3) seriously consider the method of solving the problem and find a simple way of calculation; (4) the writing should be neat and regular. Don't Scribble; (5) reasonable use of draft paper, do not scribble... 3. Specific methods of learning high school mathematics. 1. Preview: preview is very important. Through preview, we can understand the basic content and knowledge to learn, and master the knowledge network of this section, so as to find problems that we do not understand and do not know. Then when listening to the teacher's lectures, we not only have a sense of advance, but also focus on them, It is much better to listen to the teacher one by one and find the problem again than to listen to the teacher directly without preview. In addition, through preview can exercise their self-learning ability, and can grasp the initiative of listening. Some students will feel very passive when they listen to the teacher's lecture without preview. Every time the teacher talks about a question, the students will react actively below. When you are slower than others, when you finish digesting the question, the teacher often starts to talk about the second question. No matter how much you react to the first question, you have to put it down and listen to the second question, Otherwise, you will not understand some questions clearly or completely. If we preview in advance, we can avoid such problems. Therefore, the difficulty found in the preview is the focus of the class; In order to rece the difficulties in the process of listening, we can make up for the old knowledge that we have not mastered well in the preview; It is helpful to improve the thinking ability. After preview, you can improve your thinking level by comparing and analyzing what you have understood with the teacher's explanation; Preview can also cultivate their own self-learning ability. Preview before class is a good learning habit. I hope you can pay more attention to it in the future. 2. How to listen to the class: on the basis of preview, it is very important to listen to the class well. First of all, we should do a good job of material preparation and spiritual preparation before class, so as to avoid the phenomenon of losing books and books in class; Before class should not do too intense sports or reading books, fierce argument, etc. So as not to gasp or not calm down after class. The second is to listen attentively. Concentration is the whole body into the classroom learning, ear to, eye to, heart to, mouth to, hand to
listening: listening attentively to the teacher, how to teach, how to analyze, how to summarize, in addition, listening to the students' questions and answers, to see if they are inspired. Eye to: is to listen at the same time to read textbooks and blackboard, to see the teacher's expression, gestures and demonstration of experimental action, vivid and profound acceptance of the teacher's ideas. Heart to: is to think hard, keep up with the teacher's mathematical thinking, analysis of how the teacher is to grasp the key, solve problems. Mouth to: is under the guidance of the teacher, take the initiative to answer questions or participate in the discussion. Hand to hand: on the basis of listening, seeing, thinking and speaking, it is to draw out the key points of what you have learned, and write down the main points of the lecture and your own feelings or opinions with innovative thinking. If you can achieve the above "five to", you will be highly concentrated, and all the important contents learned in the classroom will leave a deep impression in your mind. In preview, what we accept are superficial and superficial, such as definitions, theorems, formulas, etc. they are all concrete and memorable things, and we only have some perceptual knowledge of the knowledge to be learned. Only through further explanation by the teacher, can the preliminary knowledge be raised to a higher level and become rational knowledge. The demonstration, overturning process and application of the learned knowledge can be clearer, so as to deepen the understanding and memory, and improve the ability of analysis and application. (that is to say, you may recite theorems, definitions and use formulas after reading them, But it is difficult to apply argumentation and analysis to exercises.) the key point of listening is to solve this problem, and to have a comprehensive understanding of theory, analysis and application. Therefore, listening is very important. You must listen with questions and key points, record the key points, and remember what you don't know about preview, Otherwise, it will affect the efficiency of recording and the effect of listening. Some students are easy to think, so, don't think about extracurricular problems, don't ask any questions in the teacher's lecture, interrupt the teacher's lecture, and seriously think about the teacher's questions and actively answer them. Pay special attention to the beginning and end of the teacher's lecture. At the beginning of a teacher's lecture, he generally summarizes the main points of the previous lesson, points out the content of this lesson, and links the old knowledge with the new knowledge. At the end, he often sums up the knowledge of a lesson, which has a high degree of generality and is the outline of mastering the knowledge and methods of this lesson on the basis of understanding. If we want to grasp the logic of thinking, analyze problems and solve problems, we can draw inferences from one instance and improve our ability of thinking and solving problems. In addition, we should pay special attention to the tips in the teacher's lecture. Teachers often give some language, tone, or even some action tips to some key and difficult points in their lectures
3. After class summary: for each lesson taught by the teacher, we must use the self-study of the day to summarize, sort it out in a special notebook, and carefully review and summarize from the definition, theorem, formula, demonstration process and typical examples, so as to form a systematic chain. After class summary, we can find problems, timely record them, and use the self-study of the day to ask the teacher, Try to solve the problems on the same day, otherwise the problems will accumulate, and you will step into the ranks of poor students. In fact, our original poor students are formed in this way. Secondly, the summary itself is not only a reasonable thinking process, but also a kind of repeated memory. At the same time, it has a higher level of understanding. Therefore, the process of our summary is the process of practice -- Understanding -- Re practice -- re understanding. The students who are good at summarizing and doing are generally proficient in basic knowledge, and they are familiar with some basic knowledge in the examination Basic questions can be done quickly and accurately. In the current college entrance examination mathematics, more than 60% of the questions are directly answered through basic knowledge (that is, using definitions, axioms, theorems, formulas and images), which accounts for about 100 points. Therefore, a good summary after class is the key to firmly grasp the basic knowledge. 4. How to deal with homework: homework is an exercise process for students to consolidate, proficient and improve their basic knowledge. Without this process, no matter how clear and profound you look and listen, it's often a piece of paper. Without sufficient homework training, you will not be able to achieve a certain degree of proficiency, let alone dexterity. The so-called "practice makes perfect" means that only on the basis of proficiency can you find some simple and ingenious ways to solve problems and solve comprehensive problems, that is, the so-called ability improvement. Some students can't do comprehensive problems (that is, the so-called "difficult problems") or even can't do it, which is directly related to their lack of proficiency (that is, less problems). Therefore, more practice can make you mature and mature can make you skillful There is no problem with the sea