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

Matrices

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

Linear and quadratic equations, systems of equations — with a detailed solution and the discriminant.

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

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

The derivative as a formula with an explanation, plus an integral with the shaded area under the curve.

Add, subtract, multiply and divide fractions — with the common denominator explained step by step.

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