📊 StatSteps
Free math & statistics calculators with step-by-step solutions, graphs and worked examples. No sign-up, no fuss.
Mean Absolute Deviation Calculator
MAD, mean, full steps and a deviation graph with outlier flags.
Inverse Tan Calculator
Degrees & radians, with a visual triangle. (coming soon)
Binomial Distribution Calculator
Exact, cumulative and interval probabilities with graphs. (coming soon)
Parabola Calculator
Vertex, focus, directrix and an interactive graph. (coming soon)