Quadratic Graphing Calculator — Vertex, Roots & Steps

Type a quadratic function to graph and solve it instantly, or edit standard, vertex and root forms. Trace the parabola and see roots, vertex, domain, range and steps.

Fraction Calculator — Mixed Numbers, Steps & Visuals

Calculate, simplify, convert, compare, and order exact fractions; generate equivalents and LCD forms or explore an interactive fraction wall.

Scientific & Graphing Calculator — DEG/RAD, History & Memory

Evaluate safe scientific expressions with DEG or RAD mode, memory, history, result formatting, and an interactive graph for up to three functions.

Random Number Generator — One Number or a Unique Sample

Generate one number from a clearly labelled inclusive range, or create, sort, copy and download a larger random sample.