The Hindu-Arabic Numerals c11.80
The Hindu-Arabic Numerals c11.80
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c11.80
¹ Woepcke found this in a Paris MS. of Radulph of Laon, c. 1100. [*Propagation*, p. 246.] "Et prima quidem trium spaciorum superductio unitatis caractere inscribitur, qui chaldeo nomine dicitur *igin*." See also Alfred Nagl, "*Der* arithmetische Tractat des Radulph von Laon" (*Abhandlungen zur Geschichte der Mathematik*, Vol. V, pp. 85–133), p. 97.