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.

A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.

¡Online-Calculator.com existe desde 2007! ¡Eso es mucho tiempo! ¡La calculadora original fue inventada en el siglo XVII por un francés llamado Blaise Pascal! Tenía solo 18 añ

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SolveCalc is a free calc solver and scientific calculator for students and teachers. Solve algebra, trigonometry, fractions, percentages and logarithms instantly with no download n

Una calculadora científica en línea, fantástica y gratuita, con funciones avanzadas para evaluar porcentajes, fracciones, funciones exponenciales, logaritmos, trigonometría, es

Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Compl

This free online calculator can be used for basic computations such as addition, subtraction, multiplication, division, and square roots.

Simple number or constant. Action that involves two numbers (i.e. 6+2). Action that requires one number (i.e. 40%). Clears something. Gives a result. Actions about the calculator o

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