BTV force calculator
You can refer to the following, according to some commonly used graphics cards in the Internet bar market, sort out the price and calculation power of a related graphics card, as well as the expected return to the current period, It can be used as a reference:
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power consumption: 243w
computing power: 22.4m
price of graphics card: 1999 yuan
quantity of eth g every 24 hours: 0.015
revenue generated every 24 hours: 24.48 yuan
expected payback time: 81.66 days
power consumption: 159w
computing power: 24.3m
price of graphics card: 1599 yuan Yuan
number of eth g every 24 hours: 0.017
revenue generated every 24 hours: 27.9 yuan
estimated payback time: 57.31 days
total power consumption: 171w
computing power: 24.4m
price: 1999 yuan
number of eth g every 24 hours: 0.017
revenue generated every 24 hours: 27.87 yuan
estimated payback time: 71.73 days
Video card (graphics card) full name display interface card, also known as display adapter, is the most basic configuration of computer, one of the most important accessories. As an important part of the computer host, the graphics card is the equipment of digital to analog signal conversion, and it undertakes the task of output display graphics
the graphics card is connected to the main board of the computer, which converts the digital signal of the computer into an analog signal for the display. At the same time, the graphics card still has the ability of image processing, which can help the CPU work and improve the overall running speed. For those engaged in professional graphic design, graphics card is very important. Civil and military graphics chip suppliers mainly include amd (ultra micro semiconctor) and NVIDIA (NVIDIA). Today's TOP500 computer, including graphics card computing core. In scientific computing, graphics card is called display accelerator
income: 0.0009 BTC RMB & # 165; 3.09 US $0.50 (at present, the price of bitcoin is about 3600 US dollars, about 580 US dollars, and the mining difficulty is 18736441558)
the mining speed changes at any time according to the mining difficulty
this kind of Power Miner is only for those miners who want to experience mining. In addition to electricity and other costs, there is basically no profit. If you want to get more profit from mining, you have to buy more power miner
for example, the mainstream miner Avalon 290g single-mode miner in the market, you can choose to buy the T-class package.
income: 0.0009
BTC
RMB & # 165; 3.09
US $0.50
(at present, the price of bitcoin is about 3600 US dollars, about 580 US dollars, and the difficulty of mining is 18736441558)
the speed of mining changes at any time according to the difficulty of mining
this kind of Power Miner is only for those miners who want to experience mining. In addition to electricity and other costs, there is basically no profit. If you want to get more profit from mining, you have to buy more power miner
for example, the mainstream miner Avalon 290g single-mode miner in the market, you can choose to buy the T-class package.
With the arrival of the last summer vacation before the senior year, a large number of senior students who are about to enter the society also begin to plan for their own future. Some students are busy preparing for the interview of major companies, while others are running between the library and the study room. You are preparing for the students, do you know which majors are the most popular
What are the popular majors in postgraate entrance examination? Let's talk about some very popular postgraate entrance examination Majors:Finance:
Finance is a very "hot" major in postgraate entrance examination. There are mainly two main research directions:
International Finance: Research on international finance and related financial theories. Most of the graates work in export-oriented investment banks, securities / insurance companies and other financing institutions, as well as foreign-related departments of some Chinese funded enterprises and economic management departments across companies or government departments
Investment: it mainly studies securities investment, international investment, enterprise investment and other fields. Most of the graates work in investment banks, investment management departments of enterprises, or relevant government departments for investment policy-making and policy management
Law:
first of all, we want to explain a very confusing concept: Master of law, master of law. The two are not the same concept. "Master of law" lays more emphasis on the cultivation of scientific research talents, while "master of law" lays more emphasis on the cultivation of applied talents. Next, we will introce these two kinds of masters respectively
Master of law: most of the majors required for undergraate study must be law. Generally, the colleges and universities that are qualified to enroll students independently have higher research depth
Master of law: there are two kinds of postgraate enrollment: "master of law (non law)" and "master of law (Law)". For candidates applying for the former, the major of undergraate study can not be major code 0301 (Note 1); The latter can only be filled in by undergraate law students. Generally, the recruitment of master of law is carried out through the joint examination of national pilot units of master of law. The relative research depth is shallow
mathematics
when it comes to mathematics major, our first impression may be that we can't understand the numbers and symbols in the whole article. In fact, the secondary subjects set by mathematics major in graate students are very extensive. Let's take some of the most popular examples:
Computational Mathematics: just look at the name, it seems to be a very common major, but if you know the breadth of this major, it will be greatly improved
The major of computational mathematics involves many disciplines, including computational physics / chemistry, computational mechanics, computational materials, environmental science, finance and insurance, etc Basic mathematics, probability and Statistics: these two parts can be said to be the two basic research directions of mathematics major in the postgraate entrance examination, both of which are the important core of mathematics science. Graates usually work in some scientific research institutions, universities or government departmentsApplied Mathematics: the achievements of basic mathematics and other research directions will be applied to practical science. It includes not only the mathematics related to application, but also the application of mathematics. At present, the very popular "big data" and "blockchain" are closely related to applied mathematics
Note: professional code 0301 "law, economic law, international law, international economic law, labor reform law, commercial law, notarization, legal affairs, administrative law, lawyer, foreign economy and law, intellectual property law, criminal law."first of all, let's distinguish a concept. In fact, the principle of timer and counter is the same. They are both "counting" pulses. Some people forcibly believe that timer is timed and counter is counting, which is wrong. Generally speaking, the timer uses an internal clock (sometimes an external reference clock is used, but it is rare). Because of the characteristics of clock stability, we can count n pulses, then the time t = n * (1 / F) (F is the clock frequency). Counter, generally count external pulse. Sometimes the timer and counter are used together to measure the external second pulse frequency
51, the specific implementation is that the timer will overflow when the count reaches 65535 plus one, and if the interrupt is turned on, it will enter the interrupt service program
it's hard to say the specific code implementation. I'll take a look at the textbook by myself. It's very simple.