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OB Reciprocals (Q002435)
Mathematical, Old Babylonian, Various · c. 1900 BCE–1600 BCE
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| Designation | OB Reciprocals |
|---|---|
| ID | Q002435 |
| Language | Sumerian |
| Period | Old Babylonian · c. 1900 BCE–1600 BCE |
| Genre | Mathematical |
| Find spot | Various |
Transliteration (ATF)
From Open Richly Annotated Cuneiform Corpus (ORACC) · CC BY-SA 3.0 (ORACC default); per-file JSON license fields say: This data is released under the CC0 license (133618)
Machine draft. The right-hand column is machine English from ixmon/atf-to-english (atf-en-t5base-F, 2026-10-17), generated line by line from the transliteration. It is unreviewed and is not a scholarly translation.
| Line | ATF | Machine English (draft) |
|---|---|---|
| 1 | ŋeš₂-da 2/3-bi 40-am₃ | Its 2/3 is 40. |
| 2 | šu-ri-a-bi 30 | Its lines are 30 |
| 3 | igi 2-ŋal₂ 30 | the inverse of 2 is 30 |
| 4 | igi 3-ŋal₂ 20 | the inverse of 3 is 20 |
| 5 | igi 4-ŋal₂ 15 | the inverse of 4 is 15 |
| 6 | igi 5-ŋal₂ 12 | the inverse of 5 is 12 |
| 7 | igi 6-ŋal₂ 10 | the inverse of 6 is 10 |
| 8 | igi 8-ŋal₂ (7.30) | the inverse of 8 is 7;30 |
| 9 | igi 9-ŋal₂ (6.40) | the inverse of 9 is 6;40 |
| 10 | igi 10-ŋal₂ 6 | the inverse of 10 is 6 |
| 11 | igi 12-ŋal₂ 5 | the inverse of 12 is 5 |
| 12 | igi 15-ŋal₂ 4 | the inverse of 15 is 4 |
| 13 | igi 16-ŋal₂ (3.45) | the inverse of 16 is 3;45 |
| 14 | igi 18-ŋal₂ (3.20) | the inverse of 18 is 3;20 |
| 15 | igi 20-ŋal₂ 3 | the inverse of 20 is 3 |
| 16 | igi 24-ŋal₂ (2.30) | the inverse of 24 is 2;30 |
| 17 | igi 25-ŋal₂ (2.24) | the inverse of 25 is 2;24 |
| 18 | igi 27-ŋal₂ (2.13.20) | the inverse of 27 is 2;13 20 |
| 19 | igi 30-ŋal₂ 2 | before Sin-eriba: 2 |
| 20 | igi 32-ŋal₂ (1.52.30) | the inverse of 32 is 1;52 30 |
| 21 | igi 36-ŋal₂ (1.40) | the inverse of 36 is 1;40 |
| 22 | igi 40-ŋal₂ (1.30) | the inverse of 40 is 1;30 |
| 23 | igi 45-ŋal₂ (1.20) | the inverse of 45 is 1;20 |
| 24 | igi 48-ŋal₂ (1.15) | the inverse of 48 is 1;15 |
| 25 | igi 50-ŋal₂ (1.12) | the inverse of 50 is 1;12 |
| 26 | igi 54-ŋal₂ (1.06.40) | the inverse of 54 is 1 06;40 |
| 27 | igi 1-ŋal₂ 1 | the inverse of 1 is 1 |
| 28 | igi 1 04-ŋal₂ (56.15) | the inverse of 1 1/4 is 56;15 |
| 29 | igi 1 12-ŋal₂ 50 | the inverse of 1 12 is 50 |
| 30 | igi 1 15-ŋal₂ 48 | the inverse of 1 15 is 48 |
| 31 | igi 1 20-ŋal₂ 45 | the inverse of 1 20 is 45 |
| 32 | igi 1 21-ŋal₂ (44.26.40) | the inverse of 1 21 is 21;26 40 |
Sources & licences
- Open Richly Annotated Cuneiform Corpus (ORACC) · CC BY-SA 3.0 (ORACC default); per-file JSON license fields say: This data is released under the CC0 license (133618) · ORACC project editions, https://oracc.museum.upenn.edu/ ; cite the individual project (see texts.extra_json.project)
Cite the original edition and translator. Page generated by Unread Atlas from the public corpus export of 2026-10-18.