The history of calculators. The first mechanical calculator was created in 1623 by Wilhelm Schickard. This device used a system of gears that allowed additions, subtractions and multiplications, and had a system that allowed the process of these calculations to be recorded, as if they were a memory.The so called "stepped drums ", invented by Leibniz, can be twisted with a crank and cogs of different sizes around 0 to 9 sprockets further. Depending on the direction of movement, these can be either added or subtracted. The multiplication is conducted as a reocurring addition, the division as an ongoing subtraction. there are basic calculators which can do simple calculation However, more advance calculators can handle complex operations like square roots, logarithms, trigonometric functions and hyperbolic functions. Using a calculator can save time, increase accuracy, improve efficiency, and simplify complex calculations. It is especially critical for financial planning and can enhance learning by allowing students to focus on the underlying concepts.
