Tips calculator!
How to count correctly?
Secrets calculator! Life hacking.
How to check the calculator?
How to find the percentage of the number?
As considered by M +.
Interest margins on the product.
Why it different buttons and switches.
How to set the rounding of the numbers on the calculator.
All this and more in this video!
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Calculator
- Wikipedia, the free encyclopedia.
This For other uses, see. Calculator (values).
Modern scientific calculator
Calculator (Latin calculātor «counter".) - Electronic computing device to perform operations on numbers or algebraic formulas.
Calculator replaced mechanical computing devices, such as abaca, abacus, slide rules, mechanical or electro-mechanical calculating machines, as well as mathematical tables (first of all - a table of logarithms).
Depending on the capabilities of the target and scope of the calculators are divided into elementary, accounting, engineering (scientific), financial. The individual classes are usually emit programmable calculators that provide the ability to perform complex calculations on prepacked program, as well as graphics - supporting the construction and display graphics. Specialized calculators are designed to perform calculations in a fairly narrow field (statistical, medical, special financial calculations, etc...); these calculators are now increasingly being implemented in the form of programs for generic PCs, PDAs, tablets, although they can be made and "iron".
In the execution of calculators can be desktop or compact (pocket). Some models have interfaces for connecting a personal computer, a printing apparatus, an external memory or other external devices. There are calculators built into personal computers, cell phones, PDAs and even watches. Specialized calculators built in appliances (such as a simple medical calculator can be integrated into a sports trainer).