Ebene trigonometrie mit anwendungen und beyträgen zur geschichte derselben

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Page 159 - Tables of Logarithms of all Numbers, from 1 to 101000, and of the Sines and Tangents to every Second of the Quadrant...
Page 44 - An Account of the Life, Writings, and Inventions of John Napier, of Merchiston...
Page 154 - Triangula, which contains all the sines, tangents, and secants for every minute of the quadrant, to the radius 100,000, with all their differences; and towards the end of the quadrant the tangents and secants are extended to 8 or 9 places of figures. They are arranged like our tables at present, increasing on the...
Page 152 - I never saw one (copy) besides that whieh is in my own possession, nor ever met with any other person at all with »uch a book,
Page 44 - Napier fought out his admirable rules, by a flow fcientific progrefs, arifing from the gradual revolution of truth. THE laft literary exertion of this eminent perfon, was the publication of his Rabdology and Promptuary, in the year 1617, which he dedicated to the Chancellor Seton, and foon after died at Merchifton, on the 3d of April, OS of the fame year, in the 68th year of his age, and, as I fuppofe, in the 23d of his happy invention.
Page 400 - Remarquons cependant qu'on y trouve la méthode ingénieuse de mesurer la surface d'un triangle rectiligne par la connaissance seule des trois côtés, sans rechercher la perpendiculaire; mais Héron la donne sans démonstration, et il est probable qu'elle est l'ouvrage de quelque mathématicien antérieur et plus profond.
Page 152 - Viète mécontent des fautes d'impression qui s'y étoicnt "lissées, en retira tous les exemplaires qu'il put recouvrer. Je n'en ai en effet jamais vu que deux, celui de la...
Page 165 - Latm word, signifying breast or bosom, and that our sine was so called allegorically. I had observed, that several of the terms in trigonometry were derived from a bow to shoot with, and its appendages; as arcus the bow, chorda the string, and...
Page 165 - ... the arrow, by which name the versed sine, which represents it, was sometimes called : also, that the tangent was so called from its office, being a line touching the circle, and secans from its cutting the same : I therefore imagined that the sinus was so called, either from its resemblance to 'the breast or bosom, or from its being a line drawn within the bosom ( sinus ) of the arc, or from its being that part of the string (chorda) of a bow (arcus) which is drawn near the breast (sinus) in...

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