Exact mathematics, written the way you write it

EquatorSolver is a computer algebra system for Windows. Type integrate(x^2 sin(x), x) or solve(x^3 - 6x^2 + 11x - 6 = 0, x) and get exact, typeset answers, then check worked solutions step by step.

Get it from the Microsoft Store

Windows 10 and 11 · Works offline, no account, no data collection

EquatorSolver worksheet with typeset results

What it does

Algebra

Expand, factor (including multivariate polynomials), simplify, partial fractions, resultants and discriminants.

Equations

Exact solutions of equations and systems, inequalities, equations with roots, and numeric solving when no exact answer exists.

Calculus

Derivatives, definite and indefinite integrals, limits, Taylor series, sums and products.

Differential equations

Separable and linear equations, constant-coefficient equations of any order, with initial conditions.

Linear algebra

Determinants, inverses, eigenvalues and eigenvectors, row reduction and linear systems, all exact.

Any precision

Evaluate to as many digits as you like, N(pi, 1000), and recognise exact constants from decimals.

Checks your work

Write a solution one step per line: EquatorSolver finds the first wrong step and notices lost or extra solutions.

Plots

Interactive 2D plots you can pan and zoom, parametric and polar curves, and rotatable 3D surfaces.

Made for daily use

Numbered steps you can reference as %n, copy as text, LaTeX or image, light and dark themes.

Screenshots

In eight languages

English中文(简体)हिन्दीEspañol FrançaisالعربيةবাংলাPortuguês (Brasil)