Calculator
Calculator
A Calculator (/kælˈkjuleɪtər/; from the Latin calculare, meaning 'to count') is a device that is used to perform calculations, ranging from basic arithmetic to complex mathematics.
History
The term "calculator" was derived from the Latin word calculare, which means 'to count'. The first known tools used for calculation were the abacus and the counting frame. The modern calculator, as we know it today, was not invented until the mid-20th century.
Types of Calculators
There are several types of calculators, including:
- Scientific calculator: A type of calculator that is used for complex mathematical calculations, such as trigonometry, statistics, and algebra.
- Graphing calculator: A calculator that is capable of plotting graphs, solving simultaneous equations, and performing other tasks with variables.
- Financial calculator: A calculator used in finance and business, capable of calculating interest rates, cash flows, and other financial functions.
- Basic calculator: A calculator that performs simple arithmetic operations like addition, subtraction, multiplication, and division.
Functions
Calculators are used for a variety of functions, including:
- Arithmetic operations: Basic calculations such as addition, subtraction, multiplication, and division.
- Scientific functions: More complex calculations such as trigonometry, calculus, and statistics.
- Financial functions: Calculations related to finance, such as interest rates and cash flows.
See Also
External links
- Medical encyclopedia article on Calculator
- Wikipedia's article - Calculator
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