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Read Euler: he is our master in everything.
In G. Simmons Calculus Gems, New York: McGraw Hill Inc., 1992.
Loci: Convergence
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Mathematical Treasures
Adam Riese's Rechenbuch
This is a page from the Rechenbuch of Adam Riese (1492 - 1559), one of the greatest reckoning masters of the 16th century. The complete title of the book is Rechnung nach der lenge/auff den Linien und Feder. This page (78) deals with the gauging of barrels, that is, with measuring the contents of the barrel.
This page from the Rechenbuch (p. 6) has a table showing numbers both in German words, in Roman numerals, and in the Hindu-Arabic numerals.