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Calculator

FreeSystem & Utilities

A scientific calculator that keeps arithmetic exact where it matters, so 0.1 + 0.2 is 0.3 and 50! shows every digit. It graphs several functions with their roots and intersections, and solves equations, exactly for linear and quadratic ones.

Features

  • Scientific keypad and keyboard input, degrees, radians or grads
  • Shop-style percentages and the order of operations done right
  • History, memory, your own variables and functions like f(x) = x^2
  • A grapher with pan, zoom, trace, roots, intersections and turning points
  • An equation solver with exact answers, √ forms and numeric roots
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Calculator graphing sin(x), a parabola and a straight line with their roots and intersections marked, next to a history of exact results such as 0.1 + 0.2 = 0.3 and x = 2, 3Calculator graphing sin(x), a parabola and a straight line with their roots and intersections marked, next to a history of exact results such as 0.1 + 0.2 = 0.3 and x = 2, 3

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