How to use MU on a calculator?

MU (addition and subtraction key): press this key to quickly complete the calculation of interest rate, tax rate, change rate, price tag, etc.

The usage method is as follows:

1, addition: press MU after entering A+B, which is often used in the calculation of growth.

2. subtraction: press MU after entering A-B, which is often used to calculate the rate of change.

3. Multiplication: press MU after entering A×B, which is often used for price increase calculation.

4. Division: press MU after entering A÷B, which is often used to calculate the bid price. The formula is a \u( 1-B%). When the MU key is pressed again, the profit value can be obtained.

Extended data:

MU is a function key on the calculator, which can quickly complete the calculation of interest rate, tax rate, change rate and price tag.

Calculator is an electronic machine invented by modern people that can perform digital operations. Calculator is the earliest calculation tool. For example, Kipu (or khipu) is a method of tying ropes and recording in ancient Incas, which is used to count or record history. It is made up of many knots of different colors.

Calculator is generally composed of arithmetic unit, controller, memory, keyboard, display, power supply and some optional peripheral devices and electronic accessories, and is composed of manual or mechanical equipment.

Modern electronic calculator is a hand-held electronic machine that can perform mathematical operations. It has an integrated circuit chip, but its structure is much simpler than that of a computer. Can be said to be the first generation of electronic computers (computers), with weak functions, but more convenient and cheaper. It can be widely used in business transactions and is one of the necessary office supplies.

References:

Baidu encyclopedia-calculator