Good afternoon. Let's keep going.

Tick what you've covered.

Filter by course and material type. Tick to mark covered. Set 1-5 confidence (rating implies covered).

Formula sheet.

Core formulas per course, rendered with KaTeX. Press ⌘/Ctrl+P to print.

Distribution gallery.

Click a card to open the interactive detail — drag parameters, watch PMF/PDF and CDF update live. Switch to Joint for bivariate visualizations.

Stochastic processes.

Built straight from the IE 503 lecture slides — discrete & continuous-time Markov chains and the Poisson / exponential family. Visual, interactive, and exam-focused: drag parameters, step through mock chains, and watch every formula fill in with real numbers.

The five models.

Built from the OPIM 611 lecture notes — EOQ and its variants, newsvendor, supply-chain contracts, game theory, and consumer models. Drag the parameters and watch every optimum move; every formula fills in with live numbers.

Derivatives & integrals.

A visual, exam-focused refresher for Probability & Statistics and Stochastic Processes. Drag the sliders to see derivatives and areas update live, then work the probability-integral patterns.

The long view.

Manual 1-5 confidence ratings tracked per topic. No automatic labels.