There were a few new techniques, like spherical trigonometry, useful for measuring the circumference of the Earth, apparently quite accurately.
32.
By 1845, the French engineer and mathematician Jean-Victor Poncelet had analyzed the movement of the universal joint using spherical trigonometry.
33.
Multilateration systems employing spherical-range measurements utilize a combination of solution algorithms based on spherical trigonometry and the Gauss-Newton NLLS method.
34.
Three years later, in 1930, the school established Architecture as its new program, with Plane and Spherical Trigonometry on its curriculum.
35.
As a teen-ager, she was fascinated with mathematics and embarked on a self-education program, teaching herself, among other things, spherical trigonometry.
36.
During her studies, she took every mathematics course offered, including spherical trigonometry, differential calculus, projective geometry, partial differential equations, and statistics.
37.
Regiomantus "'On Triangles " ( c . 1463 ) certainly took his material on spherical trigonometry ( without acknowledgement ) from Arab sources.
38.
Spherical trigonometry can then be used on any given object to convert these quantities into an adjustment in the object's right ascension and declination.
39.
"It is not clear why he refrains from burdening his readers with spherical trigonometry, a knowledge of which is so essential to successful astro-navigation.
40.
:Napier's table is organized in such a way that it specifically aided in the calculations required for celestial navigation using the formulas of spherical trigonometry.
