Math tools
Each tool is a ready-made starting point in the same calculator, so you can mix them: fit a regression, then graph its derivative; draw a slope field, then add the solution you found by hand.
Surfaces, implicit and parametric 3D graphs, exportable for 3D printing.
Direction fields for dy/dx = f(x, y), with solutions through any point.
Roses, cardioids, spirals and limaçons from r = f(θ).
Functions defined in pieces, with conditions in braces.
Exact shading for inequalities and systems.
Curves (x(t), y(t)) in 2D and 3D.
2D and 3D fields with divergence, curl and line integrals.
Linear, polynomial, exponential or any custom model, with error bars.
Box and whisker plots, dot plots and histograms from a list.
Symbolic derivatives with the rules shown step by step.
Antiderivatives and definite integrals, exact where possible.
Factor polynomials with every method shown step by step.
Limits by substitution, factoring, L’Hôpital and at infinity.
Solve for x with steps: linear, quadratic, polynomial and more.
Solve ax² + bx + c = 0 by factoring or the quadratic formula.
Probabilities, z-scores and percentiles, shaded on the bell curve.
Binomial probabilities shown as bars, with mean and SD.
P-values from data or statistics, shaded on the distribution.
Every TI-84 graphing task, mapped to a free web calculator.
Type anything: the calculator works out whether it is a function, an equation, an inequality, a list or a differential equation.