Anki Math

AnkiWeb addon 1593973895

Adds prerequisite gating and progressive detail levels to math flashcards, unlocking concepts automatically and advancing matured cards to deeper material.
AI-generated summary; may contain mistakes.

scheduling fsrs review-flow note-management card-templates

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AnkiWeb

Votes: 0 (👍 0 · 👎 0)
Updated: 2026-07-11
Anki versions: 26.05~
License: Not found (this does not mean that the addon has no license)
Virus scan: No ClamAV match A match does not prove malware. No match does not prove that the code is safe.
Languages: Python, JSON
Description language: en

Maintenance

active

Last update or commit: 2026-07-11 (113 days before the snapshot).

GitHub

No GitHub repository linked.

Will it work on my Anki?

Version branches

Min Anki	Max Anki	Updated
25.09	26.05+	2026-07-11

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Description

Math SRS — Dependencies + Progressive Levels

An Anki desktop add-on for studying mathematics with spaced repetition, adding two capabilities standard SRS lacks:

Dependency gating — a concept stays out of the study pool until every prerequisite concept has become mature, then unlocks automatically.
Progressive maturation — when a card matures, it advances to the next detail level (e.g. definition → proof outline → full proof) and its schedule resets to New, so deeper material is re-learned on a fresh curve.

Both features are optional per note and live on one Math Concept note type.

Requirements

Anki desktop 25.09.x (V3 scheduler). FSRS recommended but not required.
Features run on desktop only. Reviews done on AnkiDroid/AnkiMobile are reconciled on the next desktop launch (see below).

Usage

Add notes with the Math Concept note type.
- Fill Concept_Name and either Front/Back (plain card) or Level_1_Text … Level_3_Text for a progressive card. Current_Level starts at 1.
Set prerequisites via the Prereqs button in the editor toolbar: search concepts and add them. Cycles are detected and rejected on save.
A new note with unmet prerequisites has its card(s) suspended until every prerequisite matures (interval/stability ≥ the configured threshold, default 21 days). Study normally; unlocks and level-ups happen automatically when you leave the reviewer.
Tools → Math SRS: Rebuild gates re-applies gating across the whole collection (use after importing notes or bulk-editing prerequisites).

See config.md for all settings.

How it works

Maturity is decided by FSRS stability (stability_days), falling back to card interval (maturity_days) when a card has no FSRS memory state — math_srs/maturity.py.
The answer hook only enqueues maturity events (on a Good/Easy rating); the actual mutations run when you leave the reviewer, bundled into a single undoable CollectionOp (math_srs/engine.py). This keeps Anki's undo stack clean.
Prerequisite edges are stored in a hidden MathSRS_Prereqs field (so they sync); a reverse index makes unlocking O(dependents) — math_srs/graph.py.
Level-ups reset the schedule via col.sched.schedule_cards_as_new(...), preserving the immutable review log — math_srs/progression.py.