# A History of Mathematics

Macmillan, 1919 - Mathematics - 516 pages
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### Contents

 I 4 II 9 III 15 IV 52 V 63 VI 69 VII 71 VIII 78
 XVI 145 XVII 173 XVIII 190 XIX 231 XX 278 XXI 286 XXII 309 XXIII 329

 IX 83 X 99 XI 113 XII 118 XIII 120 XIV 130
 XXIV 367 XXV 411 XXVI 434 XXVII 447 Copyright

### Popular passages

Page 105 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Page 199 - QUANTITIES, AND THE RATIOS OF QUANTITIES, WHICH IN ANY FINITE TIME CONVERGE CONTINUALLY TO EQUALITY, AND BEFORE THE END OF THAT TIME APPROACH NEARER THE ONE TO THE OTHER THAN BY ANY GIVEN DIFFERENCE, BECOME ULTIMATELY EQUAL.
Page 262 - M. Laplace, they tell me you have written this large book on the system of the universe, and have never even mentioned its Creator.
Page 18 - The formula states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the base and altitude.
Page 286 - Thus mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.
Page 30 - Give him threepence, since he must make gain out of what he learns.
Page 197 - I consider mathematical quantities in this place not as consisting of very small parts, but as described by a continued motion. Lines are described, and thereby generated, not by the apposition of parts, but by the continued motion of points...
Page 390 - One evening, contrary to my custom, I drank black coffee and could not sleep. Ideas rose in crowds; I felt them collide until pairs interlocked, so to speak, making a stable combination. By the next morning I had established the existence of a class of Fuchsian functions, those which come from the hypergeometric series; I had only to write out the results, which took but a few hours.
Page 18 - Conspicuous is the absence of theorems on the circle. The Pythagoreans demonstrated also that the plane about a point is completely filled by six equilateral triangles, four squares, or three regular hexagons, so that a plane can be divided into figures of either kind.
Page 150 - My lord, I have undertaken this long journey purposely to see your person, and to know by what engine of wit or ingenuity you came first to think of this most excellent help into astronomy, viz. the logarithms ; but, my lord, being by you found out, I wonder nobody else found it out before, when now known it is so easy.