The original calculator was invented in the 17th century by a frenchman called blaise pascal Yes, all the online calculators on the calculator site are free for you to use at your convenience He was just 18 years old, and wanted to help his father do his tax calculations.
Dannie Riel Gostoso
A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more.
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