Graphing & Advanced Calculators
Scientific, graphing, geometry and 3D calculators.
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Scientific Calculator
A full scientific calculator with trig, logs, powers, roots and constants — free and online.
Graphing Calculator
Plot functions on an interactive graph — free online graphing calculator, no sign-up.
3D Graphing Calculator
Plot a surface z = f(x, y) in interactive 3D — rotate and zoom, free online.
Matrix Calculator
Add, multiply, transpose, and find the determinant and inverse of a matrix online.
Equation Solver
Solve linear, quadratic and systems of equations step by step, free online.
Triangle Calculator
Solve any triangle from sides and angles — area, perimeter and the missing values.