Updated Aug 10, 2026 ยท v2.0
Solve 1st to 4th degree equations with a dedicated scientific keyboard.
123 Equation Solver solves 1st, 2nd, 3rd and 4th degree algebraic equations right on your phone. - Enter coefficients with a dedicated keyboard that includes scientific functions (sine, cosine, tangent, log, square root) - Coefficients can be full math expressions, not just plain numbers - Choose between the formula result, the approximate numeric value, or both - Works in degrees, radians or gradians - No account, no intrusive ads, no internet connection needed to calculate Great for students, teachers, and anyone who needs to check the roots of an equation quickly.
13 years on Google Play
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