The Hindu-Arabic Numerals c7.66
The Hindu-Arabic Numerals c7.66
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c7.66
¹ "Est autem in aliquibus figurarum istarum apud multos diuersitas. Quidam enim septimam hanc figuram representant," etc. [Boncompagni, *Trattati*, p. 28.] Eneström has shown that very likely this work is incorrectly attributed to Johannes Hispalensis. [*Bibliotheca Mathematica*, Vol. IX (3), p. 2.]