fxSolver is described as 'Online math solver, equation editor and database, graphing calculator and science/engineering problem helper' and is an website in the Education & Reference category. There are more than 50 alternatives to fxSolver, not only websites but also apps for a variety of platforms, including Windows, Android, Mac and Linux. The best alternative is SpeedCrunch, which is both free and Open Source. Other great sites and apps similar to fxSolver are Microsoft Office Excel (Paid), Wolfram Alpha (Freemium), GNU Octave (Free, Open Source) and GeoGebra (Free, Open Source).
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