Application introduction of function calculator

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The functional calculator can also be called a scientific calculator, which is the general term for the type of calculator with elementary function numerical calculation function, and it is also the most commonly used type of calculator. It can have different calculation functions due to factors such as the manufacturer and model of the production.…

Calculator battery replacement and battery disposal

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Calculators using fluorescent digital tube display power consumption are relatively large, usually use No. 5 manganese-zinc dry battery as the power source, and the continuous service life is generally about 10 hours. When the battery voltage is too low, not only will the digital tube glow dimly, but also calculation errors will occur, the digital…