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All clearon clears the calculator, tape, and resets any functions. Memory recallon retrieves the number you have in memory and places it in the display field. Memory pluson adds the number displayed to the contents of the memory. Memory minuson subtracts the number displayed from the contents of the memory..Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, Calculation History..The original calculator was invented in the th century by a Frenchman called Blaise Pascal! He was just years old, and wanted to help his father do his tax calculations..
