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English
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On several methods that Napier original: "Neperus." John Napier was the Scottish mathematician who invented logarithms in 1614. presented in his work on logarithms, which are very suitable for solving some of the proposed problems. Chapter 7. 296.
On the fifth Axiom of Spherical Triangles and the rules derived from it. Chapter 8. 315.
A catalog of the principal problems explained in this volume, and an index of their rules, as well as the ratios and examples. page 330.
End of the Index.
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