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0029201
DECIMAL FRACTIONS.
The first appearance of decimal fractions in the unique 10th century manuscript of Abu'l-Hasan al-Uqlidisi's 'Kitab al-Fusul,' the decimal point is shown as a stroke above the number in the units place in line 10.
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0017907
RHIND PAPYRUS, 1700 B.C.
Leather scroll containing simple relations between fractions. Said to have been found with the Rhind papyrus, c1700 B.C.
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0006896
RHIND PAPYRUS.
The Rhind mathematical papyrus, copied by Ahmes, c2000-1800 B.C.
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0112747
BOETHIUS AND PYTHAGORAS.
Arithmetic stands between Boethius, left, using Hindu-Arabic numerals to calculate, while the unhappy Pythagoras of Samos uses a simple counting board or abacus. Woodcut from 'Margarita Philosophica,' 1503.