Calculator generally refers to the electronic calculator, it is a small handheld electronic computing devices, mainly used for simple mathematical calculations. It is weak and usually performs only arithmetic operations and a few logical operations and displays the results. Often used in commercial transactions or as a student calculation, is one of the common office stationery. Well, what brand is a calculator? What brand is a scientific calculator? Which areas of the computer brand are distributed most? Where is the calculator better? What are the computer brands that win the honors of big brands, famous trademarks and provincial famous brands? In order to give the calculator market consumers offer true and accurate information industry brand, the following is CNPP to provide data support, calculator ten brand list for your website statistics and relevant brand recommendation, for your reference.
M+: present the displayed values in memory, which is the result of the calculation, plus the number already stored, such as if the screen does not have “M” flag, that is, there is no data in memory, then the display value is directly stored in memory.
M-: subtracting the current display value from the memory content is the result of the calculation and subtracting the current result with the stored number, such as no digits in the memory, and the negative display number by M-.
MS: store the displayed content into memory, where the original data is swept away.
MR: press this key to call the contents of the memory, which means that the values in the memory are read to the screen as the current value.
A graphics calculator usually refers to a handheld calculator that draws images, solves simultaneous equations, and performs various other operations. Most graphics calculators also write programs. Because they have larger screens, they can also display multiple lines of text at the same time. Some graphics calculators have even color display or 3D graphics capabilities. Since graphics calculators can be programmed, it is also widely used in video games. Some computer software can also complete the function of graphing calculator. The day before, in order to promote the implementation of the new curriculum, to better carry out the integration of information technology and the new curriculum in October 2007, the Ministry of education basic education curriculum development center and the Hewlett-Packard Company to achieve the “handheld integration” technology and high school mathematics new curriculum research cooperation. On this basis, the Ministry of education mathematics and complex systems Key Laboratory (referred to as the Ministry of Education Key Laboratory) organization and implementation. The research project is planned to carry out experimental research in 20 batches of experimentation area and 500 experimental schools nationwide in 2008 and 2011, in two batches. The research goal of the research is: after 3 years of experimental research, the development of teachers in the teaching concept, teaching design, teaching practice and students in mathematics, mathematics, mathematics etc. can get better, but also for the implementation of the new curriculum of “information technology and curriculum integration” concept provide specific examples, experiences and lessons.
Scientific calculator is a kind of electronic calculator. Can involution, evolution, exponential, logarithmic and trigonometric functions, statistics and other aspects of the operation, also called function calculator.
Current calculators are standard and scientific. Standard type with large enough, the finger to the operation button, calculate basic digital large and clear and can meet the standard, support 12 bit digital display mode, arithmetic operations, square root, percentage, and memory function. The scientific model comes with all the ordinary functions, and all the functions are distributed on the keyboard so that you can use the calculator so you don’t have to use them through the menu list.
The scientific calculator supports the display of 24 bit numbers, supports arithmetic preferences, binary conversion functions, standard mathematical functions, percentage calculations, square root calculations, logarithms, squares, memory, and so on.
Notes for scientific calculators
In your use of scientific calculators, Xiaobian here to you a few points for attention.
1, when you first use the scientific calculator, make sure to press the on key. The battery needs to be replaced at least once every three years even if the operation of the computer is normal. An expired battery may leak and cause a computer to damage or function abnormally. Never put an expired battery in a calculator.
2 the battery attached to the calculator may lose a slight amount of electricity during storage and delivery. It may be less life than normal, and replace earlier.
3, insufficient power may cause the contents of the recorder to damage or disappear forever. For important data, there should always be a record of the picture.
4 avoid storing or using calculators in areas beyond the limits of temperature. Use at very low temperatures may cause a display delay, or show full damage to the screen, and shorten battery life. In addition, scientific calculators should be avoided by direct sunlight, near windows, near electric heaters or wherever exposed to high temperatures. High temperatures may cause computer housing to fade or deform and cause internal circuit damage.
5 avoid storing or using calculators in areas of high humidity and high dust;
6, please do not drop the calculator or let it be a powerful blow;
7 please do not turn or bend the calculator. Please don’t put the calculator in the pants pocket or other tight clothing, because this may make the computer twisted or bent.
8, do not open the calculator; do not use a pen or other sharp objects by the calculator buttons.
Mortgage calculator operation steps
The first step: first of all, choose your repayment method is equal principal or matching principal and interest, fill in the business loan age, the amount of loans and loan interest rates;
The second step: choose whether to show the details of the repayment, click on the “calculate” button to obtain the monthly amount of each month and the total amount of interest and repayment of loans and other detailed information.
Ten major brands of calculators
1, commercial loans are used to supplement industrial and commercial enterprises liquidity loans, usually short-term loans, usually 9 months, at most not more than one year, but there are a small amount of long-term loans. This kind of loan is a major component of commercial bank loans, which accounts for more than 1/3 of the total amount of loans.
2, the calculation of commercial loans, matching principal and matching principal and interest repayment methods, the monthly monthly supply, interest and repayment amount.
According to the general mortgage repayment formula is divided into two kinds:
I. calculation formula of equal principal and interest:
The calculation principle: banks from the monthly monthly, to collect the remaining principal and interest, after receiving the principal interest; while lower monthly payments in the proportion decreased with the remaining principal, principal in the monthly payments in the proportion increased due to increased, but the total for the month remained unchanged.
It is important to note that..:
1, the maximum urban provident fund loans should be combined with local specific view;
2, the loan has purchased a housing, but per capita area is lower than the local average, and then apply for the purchase of second sets of ordinary residents from the housing, mutatis mutandis, the implementation of the first loan to buy ordinary housing from preferential policies.
Two, equal principal calculation formula:
Monthly repayment = monthly principal plus monthly principal and interest
Monthly principal = principal / repayment month
Monthly interest = = (principal – accumulated repayment amount) X monthly interest rate
Calculation principle: the amount returned on a monthly basis remains unchanged, and the interest decreases as the amount of the remaining principal decreases.
Principal: total loans
Repayment months: loan age X12. For example, the loan repayment period of 10 months is 10X12=120 months
Monthly interest rate: monthly interest = annual interest rate /12
Annual interest rate: that is now discussed mortgage hot spots, the basic interest rate hit 30 percent off, 15% off after the figures.
Accumulative total repayment amount: the total repayment amount of the principal repayment method is 0 in the first month.
For example: interest rate table for 2009
Base annual interest rate: 5.94%
15% off year interest rate: 5.05%
30 percent off year interest rate: 4.16%
Provident fund annual interest rate: 3.87%
Mr. Wang to bank loans, 400 thousand used to buy a house, 20 years to pay off. The bank gives Mr. Wang a 30 percent off interest rate discount.
Change the annual interest rate to the monthly interest rate, then the monthly interest rate is =4.16%/12=0.00347
Matching principal repayment:
Monthly principal =400000/240=1666.67
Monthly principal and interest =400000X0.00347=1388
The first monthly repayment amount is =1666.67+1388=3054.67 (yuan)
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