- #1
student34
- 639
- 21
I can't imagine that every possible equation is preprogrammed. If that is not the case, then how do the calulators know the answers?
Calculators use a microprocessor, which is a small computer chip, to perform mathematical operations. The microprocessor contains a set of instructions that allow it to do basic arithmetic, such as addition, subtraction, multiplication, and division.
Calculators use a liquid crystal display (LCD) to display numbers and symbols. The LCD consists of a layer of liquid crystal material sandwiched between two polarized glass plates. When an electric current is applied, the liquid crystals align to form numbers and symbols on the screen.
Calculators use memory chips, similar to those found in computers, to store numbers and equations. These chips can store large amounts of data, allowing calculators to perform complex calculations and store multiple equations.
Most calculators use batteries as a power source. When turned on, the calculator sends a small current through the battery, which activates the microprocessor and allows the calculator to function. When turned off, the calculator stops sending the current, conserving battery life.
Calculators maintain accuracy through the use of mathematical algorithms and precision components. The microprocessor uses these algorithms to perform calculations with a high degree of accuracy, and the components, such as resistors and capacitors, are carefully selected and calibrated to ensure precise results.