6830 Trigonometry 



Spheroidal trigonometry. Oriani, B. Zach M. 



Cor. 10 (1804) 244-; 11 (1805) 551- ; Bo- 

 logna Mm. I. It. 1 (1806) 119- ; 2 (1808) 1-; 



(pte. 2) (1810) 1- ; Mil. Mm. I. Lomb. Yen. 



4 (1832) 325- ; Mil. Ephem. As. (1827) 3- ; 



(1828) 3-; (1829) 3-. 

 . Cayley, A. [1876] As. S. M. Not. 



37 (1877) 92. 

 , formula. Bonsdorff,A. [1885] StPet. 



Ac. Sc. Bll. 30 (1886) 205-. 

 Stadia measurements, theory. Winslow, A. 



V. Nost. Eng. Mg. 30 (1884) 313-. 

 Straight lines, and plane trigonometry. Schroder, 



J. C. Mengelwerk Wisk. Vh. 2 (1816) 



119-. 



Sum 2 sin (p + xq) etc. Fuss, N. [1796] St 



Pet! Ac. Sc. N. Acta 12 (1801) 125-. 

 . Reusch, E. Z. Mth. Ps. 11 (1866) 



536-. 

 Sums of like powers of sines and cosines of 



divisions of circumference. Lentheric, . 



Gergonne A. Mth. 16 (1825-26) 39-. 

 Surds, trigonometrical quadratic, values. Gray, 



P. Mess. Mth. 6 (1877) 105-. 

 Survey, trigonometrical, of Europe. Eeitz, 



F. H. Hamb. Mth. Gs. Mt. 1 (1889) 



39-. 

 Surveying, approximately concurrent lines, to 



find intersection. Sanchez, P. C. Mex. 



S. "Alzate" Mm. 13 (1900) 43-. 

 , errors. Perez , E. Mex. S. ' ' Alzate ' ' Mm. 



8 (1894) 135-. 

 , , probable. Gauss, C. F. As. Nr. 1 



(1823) 81-. 

 , importance of verticality in instruments. 



Sanchez, P. C. Mex. S. " Alzate" Mm. 12 



(1898) 467-. 

 , plane, problem. Hoppe, E. Arch. Mth. 



Ps. 17 (1900) 269-. 

 , Pothenot's problem and modern geometry. 



Binder, W. Wien Ak. Sb. 83 (1881) (Ab. 2) 



659-. 

 , problem of 3 points in. Campbell, John. 



Madras J. 4 (1836) 321-. 

 , simplification of formula in. Driencourt, 



. A. Hydrog. 20 (1899) 68-. 

 , trigono telemeter, use. Antequeda, C. Arg. 



S. Ci. A. 45 (1898) 390- ; 46 (1898) 5-. 

 Tables. Lindman, C. F. Stockh. Ofv. 11 



(1854) 183- ; Grunert Arch. 25 (1855) 284-. 



for calculating radius of an arc, length, 

 angle at centre, etc., when chord and height 

 of the arc are given. Sigaud, . (vm) A. 

 Cond. Pon. Chauss. 1 (1857) 132-. 



Tachymetry (tacheometry or rapid surveying). 

 Teischinger, E. Hann. Archt.-Vr. Z. 31 

 (1885) 215-. 



( ) , methods. Jordan, W. Hann . 



Archt.-Vr. Z. 30 (1884) 453-. 



( ), theory, and logarithmic tachy- 



meter. Fischer, G. Cztg. Opt. 6 (1885) 

 169-, 181-, 200-. 



Tangent (45 w>). Parkhurst, H. M. Gould 



As. J. 6 (1861) 103. 

 Tangents and anti-tangents, calculation. 



Weddle, T. Mathematician 2 (1847) 135-. 



Descriptive Geometry 6840 



Teaching of trigonometry. Hoilel, J. G. Mt. 



13 (1875) 72-. 

 . Aragon, A. Mex. S. " Alzate " Mm. 



5 (1891) 69-. 



. Fehr, H. Ens. Mth. 1 (1899) 45-. 



, various points. Pfeil,L.von. Arch. 



Mth. Ps. 58 (1876) 319-. 

 Theorem : sin a sin b sin c sin d + cos a cos b 



cos c cos d = sin a' sin b' sin c' sin d' + cos a' 



cos b' cos c' cos d'. Glaisher, J. W. L. 



Camb. Ph. S. P. 3 (1880) 319-, 383-. 

 Transformation, trigonometrical. Cayley, A. 



Camb. and Dubl. Mth. J. 9 (1854) 61-. 

 , , used by Hansen in theory of perturba- 

 tions. Baillaud, B. Bll. Sc. Mth. As. 2 



(1878) 292-. 

 Trapezium, calculation from sides. Bret- 



schneider, C. A. Arch. Mth. Ps. 52 (1871) 



24-. 

 Trigonometry in absolute geometry. Simon, M. 



Crelle J. Mth. 109 (1892) 187-. 

 Viete, Francois, trigonometry of. Ritter, F. 



As. Fr. C. E. (1892) (Pt. 2) 208-. 



6840 Descriptive geometry; 

 perspective. 



Analytical treatment of descriptive geometry 

 and perspective. Doppler, C. Bohm Gs. 

 Ab. 1 (1837-40) 78 pp. 



, four lectures. Hesse, 



L. O. Z. Mth. Ps. 11 (1866) 369-. 



Anharmonic or Cross-Ratio. 



Davies, T. S. Mathematician 1 (1845) 169-, 

 243-; 2 (1847) 91-, 199-, 310- ; 3 (1850) 

 Suppl. 35-. 



De Morgan, A. Ph. Mg. 35 (1849) 165-. 



Terquem, O. N. A. Mth. 12 (1853) 272-, 358-. 



Clifford, W. K. [1866] L. Mth. S. P. 2 



(1869) 3-. 



Busche, E. Mth. A. 41 (1893) 591-. 



Autonne, L. N. A. Mth. 18 (1899) 341-. 



Analogues in solid geometry. Heis, E. Grunert 

 Arch. 31 (1858) 37-. 



Anharmonic configurations, interchangeable- 

 ness of elements. Hofmann, F. [1882] Arch. 

 Mth. Ps. 69 (1883) 214-. 



ratio equation. Cayley, A. Mess. Mth. 17 

 (1888) 95-. 



of four points in plane. Lucas, F. 

 C. E. 77 (1873) 1463- . 



, three being fixed, variations in. 



Laisant, C. A. Par. S. Mth. Bll. 17 (1889) 



169-. 

 and invariant theory of complex quantities. 



Schick, J. [1900] Munch. Ak. Sb. 30 (1901) 



249-. 



Pappus's problem. Fiedler, W. 

 Schlomilch Z. 5 (1860) 377-. 



sextic. Walker, J. J. QJ. Mth. 10 



(1870) 53-. 



(Walker). Cayley, A. QJ. Mth. 10 



(1870) 56-. 



472 



