The application of the calculator and the function of each button are explained in detail

1. Each button of the calculator has a different function.

2. ON AC: Press the button to indicate power-on, or clear all registers.

value in . 3. M+: Put the currently displayed value in memory.

Middle; Interrupt the digital input.

4. -: Subtract the current display value from the memory content; Interrupt the digital input.

5. MRC: The first time you press this key, the memory content will be called, and the memory content will be cleared when you press it the second time.

6. GT: Press the key to transfer the contents of the MG storage register to the display register, and press the AC key to eliminate the GN display tag genealogy.

7. mu: Press the key to complete the calculation of interest rate and tax rate.

8. off: off. The first is resistant to cheating.

1. ms: Save the current displayed value.

2. mr: read the numerical value in the memory and display it.

3. MC: Clear the saved data.

4. m-: subtract the current displayed value from the saved value, and then save the result.

5. M+: Add the current displayed value to the saved value, and then save the result.

6. sin, cos, tan: trigonometric functions. sin-1, cos-1, and tan-1 are inverse trigonometric functions.

7. ANS: Result.

8. conv: metric conversion.

9. ln: natural logarithm ln a=loge a

10. log: logarithmic function.

The functions of each button of the calculator are described as follows:

on: Power on button to open the calculator.

ac: Clear key, clear all numbers.

ce: Clear the input health, clear the number or symbol of the current input, etc.

Square Root, enter the square root of the positive number.

m+: puts the current value into memory, interrupts the input.

m-: Subtracts the currently displayed value from the memory and interrupts the input.

mrc: The first press is the stored value, and the second press is the clear stored value.

C: Pai bucket clear key, during the digital input, the first press will clear the memory contents dust and grind all the values. If you are a solar calculator, this key is on/off.

mc: the cumulative clear key clears the stored data.

mr: Stores the readout key, replacing the displayed value with the value in the memory.

gt: Calculate the sum, all the numbers obtained after pressing the equal sign are all cumulative, press gt to display the cumulative number, and then press again to empty.

m: A stand-alone memory indicator, which indicates that some numbers are stored in the calculator.

e: Error indicator, when the answer capacity exceeds the number of digits on the screen, the screen will show the rrror symbol, you can press the clear key and the retreat key to re-enter the data.

off: The shutdown button closes the calculator.

mu: Press this key to complete the interest rate and tax rate calculation.

The invention of the calculator:

In 1642, the 19-year-old French great scientist Pascal invented the first mechanical calculator, in his calculator there are some interlocking gears, a gear that turns ten digits will make another gear turn one place, people can dial the number in the same way as dialing the ** dial, and the calculation result will be displayed in another window, but can only do addition and subtraction calculations. In 1694, Leibniz improved it in Germany to allow multiplication and division. After that, it was not until the end of the 50s of the 20th century that electronic calculators appeared.

The functions of each button of the calculator are described as follows:

1. Numeric keys.

It is used to enter numbers and decimal points to form the numbers and decimal points in the calculation. (as shown in the image below).

2. Addition, subtraction, multiplication, and division.

It is used to perform addition, subtraction, multiplication, and division operations. (as shown in the image below).

3. Percent key.

Used to find percentages, multiply the entered number to get the value of the percentage. (as shown in the image below).

4. Positive and negative keys.

Used to toggle the positive and negative values of the entered numbers. When calculating, you can use the positive and negative keys to change the positive number to a negative number or the negative number to a positive number. (as shown in the image below).

5. Decimal button.

Used to enter a decimal point to convert an integer to a decimal number. (as shown in the image below).

The correct way to use the calculator:

1. When typing a number, press the corresponding number key, if you press the wrong number, you can use the CE key to remove a value, and then re-enter the correct number.

2. After entering the number directly, press the multiplier sign to turn it into a multiplier, and press the = button directly without entering the multiplier, which is the quadratic value of the number.

3. The root number key is to open the quadratic root by default, and only the scientific calculator can open the quadratic root multiple times.

4. Press the plus and minus keys to change the positive and negative values of the numbers.

5. When the number is entered and the operation symbol is determined, pressing the percent key will automatically assign the previous parameter to the percentage of the previous parameter to participate in the operation. <>

1. on: power button.

2. C: Clear the current calculation and start a new calculation skin imitation burial.

3. CE: Clear the currently displayed number, which does not affect the number that has been entered.

4. M+: Put the currently displayed value in the memory and interrupt the digital input.

5. m-: subtract the current display value from the memory content and interrupt the digital input.

6. MRC: The first time you press this key, you will call the memory content, and the second time you press it, you will remove the memory content of the Qing Daqing.

7. mr: call the memory content.

8. MC: Clear the memory contents.

Hello, I will answer for you about the introduction of the calculator using function keys, I believe that many friends do not know the use of calculators, now let's take a look! 1. M+ is the result of the calculation and adds already. <>

1. M+ is the calculation result plus the number that has been stored; m- is the result of the calculation and subtracts the current result from the stored number; MR is to read the stored data; MC is to clear stored data; AC,CE zeroing is to clear the existing data and re-enter it, and the other is to clear all data results and operators. For example, calculate 5 (4 2).

2. The steps are as follows: press "4", "2", "m"; Press "5", "MR" and "GT"; Finally, don't forget to press "MC".

3. M+ is the calculation result plus the number that has been stored; m- is the result of the calculation and subtracts the current result from the stored number; MR is to read the stored data; MC is to clear stored data; AC,CE zeroing is to clear the existing data and re-enter it, and the other is to clear all data results and operators. For example, calculate 5 (4 2).

4. The steps are as follows: press "4", "2", "m"; Press "5", "MR" and "GT"; Finally, don't forget to press "MC".

The complexity of the calculator varies depending on the purpose of use.

The simplest calculator module should contain the following function keys:

1. Power supply, such as battery or solar panel (solarpanel).

2. Display screen.

It is usually made of LED light source or LCD, which can display a certain number of numbers (as usual.

Eight, ten, ten.

2. Sixteen, with twelve being the most common).

3. Electronic circuit.

4. A button panel containing the following keys:

1) Ten number keys, from 0 to 9.

2) Decimal point.

3) Equals symbol, which is used to display the solution of the operation.

4) Four arithmetic functions (addition, subtraction, multiplication, and division).

5) Cancel key, which is used to clear the currently displayed number.

6) Power switch.

7) Other basic functions, such as finding the square root or the hundredth orange Bibi key (pin).

8) More advanced modules may have a single numeric memory button (m+, m-) that can be called back when needed.