Parabolische Logarithmen und parabolische Trigonometrie: eine vergleichende Untersuchung

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Teubner, 1882 - 98 pàgines
 

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Pàgina 58 - A Treatise on some new geometrical methods, containing essays on tangential coordinates, pedal coordinates, reciprocal polars, the trigonometry of the parabola, the geometrical origin of logarithms, the geometrical properties of elliptic integrals, and other kindred subjects.
Pàgina 67 - It is singular that the imaginary formulas in trigonometry have long been discovered, while the corresponding real expressions have escaped notice. Indeed it was long ago observed, by Bernoulli, Lambert, and by others (the remark has been repeated in almost every treatise on the subject since), that the ordinates of an equilateral hyperbola might be expressed by real exponentials whose exponents are sectors of the hyperbola; but the analogy being illusory, never led to any useful results.
Pàgina 79 - Grundzüge der Theorie der hyperbolischen Functionen und der Anwendung derselben zur Ausziehung der Wurzeln und zur Auflösung der Gleichungen...
Pàgina 21 - THEORY OF ELLIPTIC INTEGRALS, AND THE PROPERTIES OF SURFACES OF THE SECOND ORDER, applied to the Investigation of the Motion of a Body round a Fixed Point. By the Rev. J. BOOTH, LL.D. 8vo., 7s. 6d. ENUNCIATIONS AND COROLLARIES OF THE PROPOSITIONS OF THE FIRST SIX BOOKS OF EUCLID; together with the Eleventh and Twelfth. 18mo., sewed, 1*.

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