5. COMPUTUS TABLES AND TEXTS II: fols. 22r-35r: OVERVIEW

This section of MS 17 contains the following items, organized into two sequences. The first sequence provides interpretive tables linked to the columns of key letters in the calendar. The second concerns the principles of Paschal reckoning, the structure of the Paschal table, and some special refinements; it concludes with an appendix on mathematical operations useful for computus.

This entire section comprises the following items:

Calendar Tables Overview

1. Dominical Letters: tables and text: fol. 22r.
2. Litterae punctatae table and text: fol. 22r-v.
3. Table for lunar letters A-V,A.--I: fols. 22v-23r.
4. Criteria for moveable feasts: fol. 23r.
5. Pagina regularis: table and text: fol. 23r-v
6. Lunar zodiac table: fol. 24r
7. Four Ember Fasts: fol. 24v.
8. Lunar letters AEIOV: table and text: fol. 24v.
9. Abbo of Fleury, Ephemerida : fol. 25r-26r.
10. Tables for lunar letters A-K: fol. 26v
11. Rota of monthly lunar epacts: fol. 27r.
12. Rota for feria of kalends: fol. 27v.

Pascal Computation Tables Overview

13. Paschal hand: fol. 28r.
14. Legend of Pachomius: fol. 28r
15. Application to other moveable feasts: fol. 28r.
16. Termini for major moveable feasts: table and argumenta : fol. 28v
17a. Paradigm Dionysian Paschal table: 1. Explanatory text: fol. 28v-29r
17b. Paradigm Dionysian Paschal table: 2. Decennovenal cycle: fol. 29r
17c. Paradigm Dionysian Paschal table: 3. Linea Christe: fol. 29r
17d. Paradigm Dionysian Paschal table: 4. Table: fol. 29r-v.
17e. Paradigm Dionysian Paschal table: 5. Annals: fol. 29r-v *Transcription Paradigm Paschal Table Annals
18. Tabula Dionysii : fol. 30r
19. Key letter method of Paschal reckoning: Three tables: fol. 30v-31v
20. Feria of terminus method of Paschal calculation: Two tables: fol. 32r-v
21. Computistic memorandum 1: argumentum to find feria : fol. 33r.
22. Computistic memorandum 2: argumentum to find Advent: fol. 33r.
23. Computistic memorandum 3: table of epacts: fol. 33r.
24. Computistic memorandum 4: "Passover"--table and text: fol. 33r.
25. Computistic memorandum 5: new Moons throughout the year: fol. 33r.
26. Perpetual Calendar 1: fol. 33v.
27. Perpetual Calendar 2: fol. 34r.
28. Criteria for determining Easter: fol. 34r
29. Concordance of lunar limits of moveable feasts: fol. 34r
30. Mathematics for computists 1: multiplication and division tables: fol. 34v
31. Mathematics for computists 2: types of number: text and glosses: fol. 34v.
32. Mathematics for computists 3: Abbo's abacus: fol. 35r.
33. Mathematics for computists 4: 7x and 59x tables: fol. 35r.