Math for school and university students — with step-by-step solutions and theory

Matrix Calculator (step by step)

Determinant, inverse, rank, multiplication and linear systems — with the full solution chain, like on paper.

Linear and quadratic equations, systems of equations — with discriminant and detailed explanation.

Type y = x² or sin(x) — the graph appears instantly. Zoom, pan, several functions at once.

Surface z = f(x, y): type a formula and spin it with your mouse. Height coloring, zoom, all in the browser.

The derivative of a function with a detailed step-by-step breakdown, a graph with extrema and the three meanings of the derivative.

The indefinite integral (antiderivative) broken down step by step: table, substitution, by parts. Graph and table.

The definite integral as the area under the graph: shaded area, Newton–Leibniz formula, explanation.

Fractions and mixed numbers: whole expressions, reducing, a common denominator for several fractions, GCD and LCM — step by step.

Values of expressions, simplification, equations and the right triangle, explained step by step.

All typical percent problems — with the formula and an explanation of every calculation.