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https://www.online-calculator.com
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

https://www.desmos.com › scientific
A beautiful free online scientific calculator with advanced features for evaluating percentages fractions exponential functions logarithms trigonometry statistics and more

https://www.calculator.net
Online calculator for quick calculations along with a large collection of calculators on math finance fitness and more each with in depth information

https://www.calculatorsoup.com › calculators › math › basic.php
Use this basic calculator online for math with addition subtraction division and multiplication The calculator includes functions for square root percentage pi exponents powers

https://calculator-1.com
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

https://w3calc.com › en › online
Perfect for students professionals and everyday users this online calculator provides accurate results for basic arithmetic scientific functions and more Enjoy the convenience of free ad free

https://247calculator.com › calculator
Use our free calculator online for quick and accurate math calculations on the go Compatible with all devices it supports addition subtraction multiplication division and more with a

https://web2.0calc.com
Free Online Scientific Notation Calculator Solve advanced problems in Physics Mathematics and Engineering Math Expression Renderer Plots Unit Converter Equation Solver Complex Numbers

https://webcalc.org › en
Free high function online calculator Handles everything from basic calculations to advanced mathematical functions Comfortable to use on smartphones and tablets