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



