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P. HISTORY OF ' AATHEMATICAL - School of Mathematics

P. HISTORY OF ' AATHEMATICAL - School of Mathematics

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INDIVIDUAL WRITERS 119<br />

However, in the Ars magna1 Cardan solves the problem, to divide 10<br />

into two parts, whose product is 40, and writes (as shown above) :<br />

" I<br />

5. @ l$. fi. 15.<br />

5. 7% R. m.. 15.<br />

1 25 m.m.. 15. quad. est 40 . 7,<br />

Fxa. 46.-Part <strong>of</strong> a page (255) from the Ars magnu as reprinted in H. Cardan'a<br />

Operum tomvs quurtvs (Lvgdvni, 1663). The Ars magna was first published in 1545.<br />

Opmm tomvs quartvs, p. 287.

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