| 11. | He also prepared and published the first modern edition of Fibonacci's " Liber Abaci ".
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| 12. | Square plinths with decorative moulding support shafts with unusual abaci with such extensive chamfering that they are almost circular.
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| 13. | The south aisle, added in the 13th century and unblocked in 1867 during the abaci and octagonal responds.
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| 14. | The abaci are of two types : square and plain and circular and decorated and these are of different proportions.
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| 15. | Computers started out as abaci as far back as 2400 BC . They have very slowly evolved to what we have today.
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| 16. | Fibonacci followed this convention when writing numbers such as in his influential work " Liber Abaci " in the 13th century.
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| 17. | He also introduced Europe to the sequence of Fibonacci numbers, which he used as an example in " Liber Abaci ".
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| 18. | "Liber Abaci " was among the first Western books to describe Hindu Arabic numbers traditionally described as " Arabic Numerals ".
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| 19. | Fibonacci, in his 1202 book " Liber Abaci " lists several methods for finding Egyptian fraction representations of a rational number.
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| 20. | He also indicates that a suspiciously familiar third instance of these types of problems is to be found in Fibonacci's Liber Abaci.
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