sm2
An implementation of the SM-2 algorithm from SuperMemo. For my own elucidation.
Plot of the change in EF as a function of response quality:

Interval as a function of correct repetitions, for different EF values:

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Python Package for FSRS Spaced Repetition
Public-domain Python library for flashcard quiz scheduling using Bayesian statistics. (JavaScript, Java, Dart, and other ports available!)
A JavaScript and TypeScript implementation of SuperMemo 2, a spaced repetition algorithm for flashcards.
A Stochastic Shortest Path Algorithm for Optimizing Spaced Repetition Scheduling
Study flashcards in a native GNOME app
Common/Emacs Lisp implementation for FSRS
An implementation of the SM-2 algorithm from SuperMemo. For my own elucidation.
Plot of the change in EF as a function of response quality:

Interval as a function of correct repetitions, for different EF values:
