The Hindu-Arabic Numerals c8.49
The Hindu-Arabic Numerals c8.49
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c8.49
⁶ "Decimo X 0 theca, circulꝰ cifra sive figura nihili appellat'." [*Enchiridion Algorismi*, Cologne, 1501.] Later, "quoniam de integris tam in cifris quam in proiectilibus,"—the word *proiectilibus* referring to markers "thrown" and used on an abacus, whence the French *jetons* and the English expression "to cast an account."