What is the hexadecimal rate?
Our current mathematics is decimal, rounding up by 10. For 16-digit numbers, if you reach 16, please move up one digit. Why is the time advancement rate sixty?
This is due to a tradition of the ancient Roman Empire. The most auspicious numbers in our country since ancient times are 5 and 9, while the ancient Roman Empire was 6 and 0, so a long time ago, The time system of the ancient Roman Empire was based on the base 60 system. Due to the cultural exchanges between merchants between the empires, it was adopted and is still used today. The sexagesimal system originally originated in Babylon. There are different opinions as to why the Babylonians used sexagesimal systems. Some people think that the Babylonians originally believed that a year is 360 days, that the sun moves one "step" (i.e. one degree) every day, and that the Babylonians were already familiar with the six equal parts of the circle to get 60. Others think that 60 has 2, 3, 4, Factors such as 5, 6, 10, 12, etc. simplify operations and so on. This base 60 system was first discovered by Hincks on Babylonian clay tablets in 1854. These clay tablets date from approximately 2300 BC to 1600 BC. Inscribed on the clay tablets are 1.4 = 82, 1.21 = 92, 1.40 = 102, 2.1 = 112. Such formulas are small. These formulas cannot be understood by other carries, but they can be easily solved by carrying 60. Such as 1.40 = 1×60 40 = 100 = 102 and so on.
The base 60 system is still used in many fields, such as 1 hour equals 60 minutes; 1 minute equals 60 seconds; angle system, etc. Our country's chronological system of heavenly stems and earthly branches is also a sexagesimal system.
I don’t know if the primary school students will offend the teacher if they answer like this. What is hexadecimal?
Alas, from the questions asked by the poster, you should know what level the poster is. The brothers below can only understand the poster in a simple and vivid way. For example:
Our usual counting:
0, 1, 2, 3, 4...9,
10, 11, 12 , 13...19,
20, 21, 22, 23...29,
.........
90 , 91, 92, 93...99,
100, 101, 102...109, etc...
This is called the decimal system. 1
Now look at the binary system
0, 1, 10, 11, 100, 101, 110, 111....
And so on ( Expressed in decimal notation: 0, 1, 2, 3, 4, 5, 6, 7, 8...)
The above information, every 2 enters 1, the poster tries to think about these The direct relationship between the data
Let’s look at the data in octal system: The corresponding decimal systems are
0, 1, 2, 3, 4, 5, 6, 7, (0, 1, 2, 3, 4, 5, 6, 7,)
10, 11, 12, 13, 14, 15, 16, 17, (8, 9, 10, 11, 12, 13, 14,)
21, 21, 22, 23, 24, 25, 26, 27... (15, 16, 17, 18, 19, 20, 21,)
By now you should know what the hexadecimal system is, that is, counting is based on 16 as the hexadecimal system
0, 1, 2, 3, 4, 5, 6, 7 , 8, 9, A, B, C, D, E, F (representing 0-15 in decimal system respectively)
If the above information is in decimal system, when writing 9, it will be followed I wrote 10 and got one place.
But now it is a hexadecimal system, so when writing F(16), you have to add one digit, which is 10. This 10 in hexadecimal system is not 10 in decimal system (if you can distinguish this, I believe the poster will Already know what the issue of base system is)
The 10 in the hexadecimal system here means the 17 in the decimal system.
No need to talk about it anymore...
If you want to learn Chinese, you must understand the hexadecimal system!
Let’s talk about what hexadecimal system is
The following are several calculation methods of hexadecimal system: Decimal system:
There are 10 bases: 0 ~~ 9 , every tenth is a decimal
Binary system:
There are 2 bases: 0 ~~ 1 , every two is a decimal
Octal system ：
There are 8 bases: 0 ~~ 7, every eight is the first one
Hexadecimal system:
There are 16 bases: 0 ~~ 9 , A, B, C, D, E, F (A=10, B=11, C=12, D=13, E=14, F=15), every sixteenth day.
Let’s first talk about the decimal system that we often use. Counting from 0 to 9, advancing by 1 when reaching the 10th number is 10, and then counting 11, 12... How old are children in the decimal system? Understand! Ha~ The same is true for the hexadecimal system. We count from 0 to 1, 2, 3...A, B...F. When we count to F (that is, the 16th number), the next step is 10, and then we count 11, 12, 13...18, 19, 1A, 1B...and so on. Every 16, get one!
Here are two sample questions:
(199) What is the conversion from decimal to hexadecimal?
Answer: 199=16*12 7=C7
(Note that in hexadecimal, A=10, B=11, C=12, D=13, E=14, F=15)
How can we add 7 to 16*12?
99\16=12 remainder 7, so =C7
The hexadecimal system is 0-f.c is 12, so it is C7
Let’s take another example of decimal 10 in hexadecimal is equal to A in hexadecimal
Convert the following decimal numbers into hexadecimal numbers
23050032110242000
The answer is as follows
First remember the numbers 1, 16, 256, 4096, that is, 16 squared, 16 cubed, etc. Find the largest divisor among the above numbers based on the number to be converted, and perform division to obtain the quotient and remainder. Write down the quotient and repeat the steps with the remainder
Take 321 as an example: 321/256 = 1 remainder 65 ==》Write down 165/16 = 4 remainder 1==》Write down 141/ 1 = 1 more than 0 ==》Write down 141, which means 321 in decimal is equal to 141 in hexadecimal. If you don’t understand, you can refer to the tutorial on making a wish.
To give another example in response to everyone's request, in fact, Chinese translation does not require any hexadecimal formula. The formula is to let everyone understand the hexadecimal system, but it has the opposite effect and makes everyone feel more complicated!
Now let’s not think about the formula. I think of a method that can help you understand the hexadecimal system easily. Let me first give you an example of the decimal system to help you understand the decimal system easily. It is composed of base numbers 0-9, and it is rounded up by one every ten years, that is, when counting to 9, it is rounded up by one.
Example of decimal system:
00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
Everyone knows the decimal system, just give an example For example, just understand it by counting
The hexadecimal system has 16 bases, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A , B, C, D, E, F
The hexadecimal system advances by one every hexadecimal, that is, when counting to F, it advances by one and starts counting from 0
Example:
00000
00001
00002
00003
00004
00005
00006
00007
00008
00009
0000A
0000B
0000C
0000D
0000E
0000F
00010
00011
00012
00013
00014
00015
00016
00017
00018
p>00019
0001A
0001B
0001C
0001D
0001E
0001F
00020
00021
00022
00023
00024
00025
00026
00027
00028
00029
0002A
0002B
0002C
0002D
0002E
0002F
00030
Although very trembling , this may make it easier for everyone to understand some decimal-to-hexadecimal-to-hexadecimal formulas, but you can do points!
What is the next number in example CB? The next one is CC
What is the next number of ef? f0
There is no Ef in hexadecimal system, which means 15. Counting to f goes forward by one, just like counting in decimal system, counting to 99 The next one is 100. Everyone understands the hexadecimal system mentioned above, right? If you don’t understand, study slowly and use your brain more! What is hexadecimal? What is hexadecimal?
Hexadecimal (English name: Hexadecim
al), is a method of representing data in computers. It is different from the representation in our daily life. It consists of 0-9, A-F, and the letters are not case-sensitive. The corresponding relationship with the decimal system is: 0-9 corresponds to 0-9; A-F corresponds to 10-15; N-based numbers can be represented by numbers from 0 to (N-1), and letters A-F are used for numbers exceeding 9. What is the deposit reserve ratio
Introduction to the deposit reserve ratio
Deposit reserves refer to the deposits in the central bank prepared by financial institutions to ensure the needs of customers to withdraw deposits and liquidate funds. The ratio of deposit reserves required by the central bank to its total deposits is the deposit-reserve ratio.
Deposit reserves are funds prepared to limit the credit expansion of financial institutions and ensure the needs of customers to withdraw deposits and liquidate funds. The statutory deposit reserve ratio is the ratio of the deposit reserves that financial institutions pay to the central bank in accordance with regulations to their total deposits. This part is a risk reserve and cannot be used to issue loans. The higher the ratio, the stronger the austerity policy implemented. The effect of changes in the deposit reserve ratio on commercial banks is as follows:
When the central bank increases the statutory reserve ratio, the ability of commercial banks to provide loans and create credit decreases. Because the reserve ratio increases, the money multiplier becomes smaller, thereby reducing the ability of the entire commercial banking system to create credit and expand the scale of credit. The result is that society's money supply is tight, the money supply is reduced, interest rates are increased, investment and social Expenditures were reduced accordingly. vice versa.
For example, if the deposit reserve ratio is 7%, it means that for every 1 million yuan of deposits that a financial institution absorbs, it must deposit a deposit reserve of 70,000 yuan to the central bank for the purpose of issuing loans. The capital is 930,000 yuan. If the deposit reserve ratio is raised to 7.5%, the loanable funds of financial institutions will be reduced to 925,000 yuan.
Under the deposit reserve system, financial institutions cannot use all the deposits they absorb to issue loans. They must retain a certain amount of funds, namely deposit reserves, to prepare for customer withdrawal needs. Therefore, deposit reserves The system is conducive to ensuring the normal payment of financial institutions to customers. With the development of the financial system, deposit reserves have gradually evolved into an important monetary policy tool. When the central bank lowers the deposit reserve ratio, financial institutions have more funds available for loans, and the total amount of loans and money supply in society will also increase accordingly; conversely, the total amount of loans and money supply in society will decrease accordingly.
By adjusting the deposit reserve ratio, the central bank can affect the credit expansion capabilities of financial institutions, thereby indirectly regulating the money supply. The excess deposit reserve ratio refers to the ratio of reserves retained by commercial banks in excess of statutory deposit reserves to all current deposits. From a morphological point of view, excess reserves can be cash or highly liquid financial assets, such as reserve deposits in central bank accounts.
Since 2006, China's economy has grown rapidly, but contradictions in economic execution have become more prominent, and the momentum of excessive investment growth has not diminished. One of the main reasons for the excessive growth of investment is the excessive growth of money and credit. Increasing the deposit reserve ratio can accordingly slow down the growth of money and credit and maintain the healthy and coordinated development of the national economy. What is the Sixteenth Ban?
The Sixteenth Ban is a self-created list of things that are prohibited after the age of sixteen:
1. There is no sense of responsibility in prohibiting (I think this is very important, so I will It is placed in the first article)
1. It is forbidden to treat the people who love me and the people I love badly
2. It is forbidden to lose temper impulsively
3. It is forbidden to ignore important days
4. It is forbidden to be depressed because of small things
5. It is forbidden to be petty and look for trouble
.... What are ten Six steps
In fact, it is very simple. Nowadays, many places, especially in big cities (Shenzhen, Dongguan...
) all the squares are doing this kind of dance! You can learn by dancing with others!
It is a kind of group dance! That’s right, just sixteen simple steps!
It is a kind of dance, quite simple, with 16 steps per step. Old people often dance in the public square.