Smithsonian Mathematical Tables: Hyperbolic Functions |
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Page 11 - Foncenex showed how to interchange circular and hyperbolic functions by the use of 1/ — 1 , and gave the analogue of de Moivre's theorem, the work resting more on analogy, however, than on clear definition (Reflex, sur les quant, imag., Miscel. Turin Soc., Tom. I). Johann Heinrich Lambert systematized the subject and gave the serial developments and the exponential expressions. He adopted the notation sinh...
Page 6 - MAHON (On the General Term in the Reversion of Series, Bull. Am. Math. Soc., p. 170, April, 1894...