The original calculator was invented in the 17th century by a frenchman called blaise pascal He was just 18 years old, and wanted to help his father do his tax calculations. Use this basic calculator online for math with addition, subtraction, division and multiplication The calculator includes functions for square root, percentage, pi, exponents, powers and rounding. Use the best online calculator for any math calculations on pc and smartphones The free calculator allows you to quickly and accurately perform arithmetic, calculate percentages, raise to a power or take a root
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