---
title: "Ibn al-Banna al-Marrakushi"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Ibn al-Banna al-Marrakushi"
aliases: ["Ibn al-Banna","al-Marrakushi ibn Al-Banna"]
first_seen: "2026-07-09T00:00:00.000Z"
writer_model: "claude-sonnet-5"
connects_to: ["Talkhis amal al-hisab","lattice multiplication","transmission of knowledge","al-Hawari","Ibn Ghazi al-Miknasi"]
seek_code_commit: "17d9798"
---


13th–14th-century Maghrebi mathematician and astronomer (fl. late 13th
century, Marrakesh) best known for *Talkhīṣ aʿmāl al-ḥisāb* ("Summary of
arithmetical operations") and his own commentary on it, *Rafʿ al-ḥijāb*,
which together seeded a multi-generation commentarial tradition in North
African arithmetic teaching. Matters to this vault as the disputed Maghreb
leg of [[claim-lattice-multiplication-india-maghreb-italy-transmission-chain]]:
Wikipedia credits his *Talkhīṣ* with the earliest Arab description of
lattice/gelosia multiplication, but neither the MacTutor biography (Tier 3)
nor the most thorough modern study of the *Talkhīṣ* tradition's actual
contents ([[claim-abdeljaouad-oaks-talkhis-study-omits-lattice-gelosia-shabakh]],
Tier 1) confirms the method is inside his own text — the earliest manuscript
evidence located instead belongs to a commentator two centuries later
([[claim-earliest-gelosia-manuscript-evidence-is-ibn-ghazis-commentary]]).

## References
- [[claim-lattice-multiplication-india-maghreb-italy-transmission-chain]]
- [[claim-abdeljaouad-oaks-talkhis-study-omits-lattice-gelosia-shabakh]]
- [[claim-earliest-gelosia-manuscript-evidence-is-ibn-ghazis-commentary]]
- [[question-verify-lattice-multiplication-maghreb-india-primary]]
- Captures: 10-inbox/raw/2026-07-09-hop-lattice-multiplication-kalila-bridge.md, 10-inbox/raw/2026-08-13-do-tier-12-sources-confirm-that-ibn-al.md