Microsoft Excel, Mathematica, MathType, Photomath, MATLAB, Wolfram Alpha, Maple, Mathpix Snip, GeoGebra, Desmos, Google Calculator, Scilab, Soulver, Symbolab Math Solver, SpeedCrunch, RealCalc Scientific Calculator, Numi, GNU Octave, R (programming language), Maxima, OneSecondSolver, SaiCalculator, Graph Toy, Mathway, SageMath, Grapher, Microsoft Mathematics, NoteCalc, Graphtoy, wxMaxima, PCalc, Brainly, Delta: Math helper, handyCalc, Engineering Equation Solver, LibreOffice - Math, Caligator, Excel Formula Beautifier, Calculator N+, Spyder, Swift Calcs, Gauthmath, Collimator, KAlgebra, Cymath, SymPy, Engineering Calculator, Integral Calculator, CADWOLF, NumWorks Graphing Calculator, Calcpad, Qalculate!, WebMath, GeoGebra Scientific Calculator, MathStudio, PhotoStudy, engineeringsuite, Omni Calculator, Alternate Math Solver, Math42, GeoGebra Classic, Qaltex, Median Calculator, SSuite Axcel Professional Spreadsheet, EngineeringPaper.xyz, Calculator by Xlythe, Dynamic Math Solver, Algebra Calculator, Limit Calculator, DataSpell, makina, Physics Formulas Calculator, Real Time Calculator, Calculairum, MATHdoozy, CrossCalc, Merge Math, Calculator plus1, ThinkCalculator, Getcalc, MochiMicho Calculator, FormulaDesk Math, Polar SpreadSheet 2020, Rule of 3 Calculator, errProof are some alternatives to FxSolver.