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Calculators are electronic or mechanical devices designed to perform mathematical calculations. They range from simple models that handle basic arithmetic operations like addition, subtraction, multiplication, and division, to advanced scientific calculators capable of solving complex functions, trigonometry, statistics, and even graphing equations.
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Display: From simple LCD screens to color touchscreens for graphing calculators.
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Memory Functions: Store previous calculations or values for later use.
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Solar Power: Many calculators use solar cells to extend battery life.
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Portability: Small and lightweight for use anywhere.
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User Interface: Buttons or touch-sensitive keys designed for ease of use.