6830 Trigonometry. Angle- trisection. Formulae; 



As. Fr. C. E. (1887) (Pt. 2) 



6830 



Collignon, E. 



141-. 



Cadiz, M. Chili S. Sc. Act. 3 (1893) Ixxxviii. 

 Candy, A. L. [1893] Kan. Un. Q. 2 (1894) 



35-. 

 Obrecht, . Chili S. Sc. Act. 3 (1893) xcvi-, 



cxviii. 

 Crawford, L. Edinb. Mth. S. P. 16 (1898) 



42-. 

 Mardones, F. Santiago de Chile Un. A. 101 



Durell, ' C. V., & Beard, W. F. Mth. Gz. 1 



(1900) 232. 

 apparatus. Schweder, G. (jun.). Eiga Cor.- 



Bl. 37 (1894) 46-. 



application of property of equilateral hyper- 

 bola. SAretuen, S. J. (xn) Ts. Mth. 4 



(1868) 1-. 

 approximate. Bjorling, C. F. E-. Arch. Mth. 



Ps. 15 (1897) 223-. 

 , by compasses and rule. Lampe, E. Crelle 



J. Mth. 100 (1887) 364. 

 Baratta's suggestion. Schiaparelli, G. V. Mil. 



I. Lomb. Ed. 2 (1869) 1083-. 

 classification of solutions. Baker, M. Smiths. 



Misc. Col. 33 (1888) Art. 4, 96-. (Wash. Ph. 



S. Bll. 10 (1888).) 

 by compasses. Lucas, E. C. E. 81 (1875) 



368-. 

 compasses for, theorem leading to. Toscani, C. 



Tortolini A. 3 (1852) 276-. 

 and conchoids. Sidler, G. Bern Mt. (1873) 



(Ab.) 31-. 



cube, multiplication, etc., solutions. 

 Werneburg, J. F. C. Oken Isis (1819) 

 1519-. 



by curve of 3rd degree. Boyman, J. E. 

 Grunert Arch. 15 (1850) 205-. 



4th degree. Bichot, . Fr. Cg. 

 Sc. (1835) 87-. 



curves for. Allen, W. Silliman J. 4 (1822) 



343-. 

 by fixed conies. Panzerbieter, W. Arch. Mth. 



Ps. 11 (1892) 408-. 

 , arbitrary. Glaser, S. Arch. Mth. 



Ps. 12 (1894) 367-. 

 hyperbola. Panzerbieter, W. Arch. Mth. 



Ps. 10 (1891) 333-. 

 geometrical principles connected with. Walker, 



John. Thomson A. Ph. 7 (1824) 356-. 

 graphic. Sarrus, F. Gergonne A. Mth. 10 



(1819-20) 189-. 

 . Anon, (vi 231) Bb. Un. 27 (1824) 



162-. 



. Lhuilier, S. Bb. Un. 28 (1825) 3-. 

 by hyperbola and circle. Teixeira, A. J. 



Coimbra I. 6 (1858) 121-, 133, 134-, 177-, 



191-. 



, equilateral. Neuberg, J. J. B. (xn) 



Mathesis 3 (1883) 130-. 

 and inscribed quadrilateral. Broager, P. D. 



(xn) Ts. Mth. 4 (1868) 113-. 

 mechanical. Laurent, P. Nancy Mm. S. Sc. 



(1833-34) 58. 



methods. Hudson, C. I. Ev. 2 (1838) 

 332-, 396-. 



and multisection. Roche, . Quetelet Cor. 

 Mth. 6 (1830) 375-. 



new curve for. Hillhouse, W. [U.S.A.] [1878] 



Des Moines Anal. 9 (1882) 181-. 

 optical solution. Hill, C. J. D. Grunert 



Arch. 1 (1841) 215-. 

 radiatrix for. M., N. (vi Adds.) Thomson A. 



Ph. 6 (1815) 154-. 

 rectilinear geometric method. Lyesn...skii, I. 



(xn) Mosc. Un. Mm. 9 (1835) 40-. 

 without trigonometry. Dippe, M. C. Grunert 



Arch. 7 (1846) 108-. 



n- and (re + l)-division of angle and circle. 

 Grinten, A. van der. Arch. Mth. Ps. 70 

 (1884) 393-. 



Double-altitude problem, solution. Borgen, C. 



A. der Hydrog. 28 (1900) 84-. 

 Elimination of sines and cosines. M'Laren, 



(Lord). Edinb. E. S. P. 20 (1895) 145-. 

 Eliminations in trigonometry. Meyer, F. D. 



Mth. Vr. Jbr. 4 (1897) 92-. 



Equation giving tan , when tan a is known. 



Biehler i C. N. A. Mth. 6 (1887) 5-. 



t&nx-x = a, solution. Gough, J. Nichol- 

 son J. 21 (1808) 1-. 



2 cosr0=0, solution. Gregory, D. F. 



(vi Adds.) Camb. Mth. J. 1 (1839) 44-. 



tan x m tan a. Girault, C. Caen Ac. Mm. 

 (1856) 22-. 



cos a 2 sin 4 - 2 sin a cos a sin tf> cos <f> 



+ sin a 2 cos < 4 = 0. 



Grunert, J. A. Arch. Mth. Ps. 45 (1866) 

 417-. 



TO sin 4 z = sin (z-q), table for numerical 

 solution. Gasparis, A. de. Nap. Ed. 21 

 (1882) 94-. 



2c arc tan x = k ^ , complex integers applied 



to solve in rational numbers x, c, k. 



Stfrmer, C. Arch. Mth. Ntvd. 19 (1897) 



No. 3, 96 pp. 

 Equations, trigonometrical, roots determined 



by ruler and compasses. Florow, P. Fschr. 



Mth. (1897) 455. 

 _ f _, solution by series. Chauvenet, W. 



Gould As. J. 3 (1854) 161. 



, , transformation, cases. Hop/, L. 

 Nr. 57 (1862) 137-. 



Finite variations calculus, application. Lorgna 

 A. M. Verona S. It. Mm. 7 (1794) 346-. 



Formula of Plane Trigonometry. 



Zahradnik, K. Arch. Mth. Ps. 6 (1888) 



415-. 

 Cosine of angle between lines. Grunert, J. A. 



Grunert Arch. 8 (1846) 194-. 

 Derivation from coordinate geometry. Eiese, 



(Prof.) von. Grunert Arch. 30 (1858) 



143-. 

 of formulae. Matzka, W. Grunert Arch. 



13 (1849) 73-. 



As. 



463 



