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.
Equation Solver (with steps)
Linear and quadratic equations, systems of equations — with discriminant and detailed explanation.
Function Grapher
Type y = x² or sin(x) — the graph appears instantly. Zoom, pan, several functions at once.
3D Function Grapher
Surface z = f(x, y): type a formula and spin it with your mouse. Height coloring, zoom, all in the browser.
Derivatives
The derivative of a function with a detailed step-by-step breakdown, a graph with extrema and the three meanings of the derivative.
Antiderivative and indefinite integral
The indefinite integral (antiderivative) broken down step by step: table, substitution, by parts. Graph and table.
Definite integral
The definite integral as the area under the graph: shaded area, Newton–Leibniz formula, explanation.
Fraction Calculator (with steps)
Add, subtract, multiply and divide fractions — common denominator and reduction explained. Plus GCD and LCM.
Trigonometry
Tables of values, identities, reduction formulas and equations solved step by step.
Percentage Calculator
All typical percent problems — with the formula and an explanation of every calculation.