spherical trigonometry

noun

1. the branch of trigonometry that deals with spherical triangles.

spherical trigonometry

noun

1. the branch of trigonometry concerned with the measurement of the angles and sides of spherical triangles

Word History and Origins

Origin of spherical trigonometry¹

First recorded in 1720–30

Example Sentences

Once a mainstay of mathematics, spherical trigonometry no longer appears on school curricula.

From Nature

The calculation of the angles between the normals of faces and between zone-circles is then performed by the ordinary methods of spherical trigonometry.

From Project Gutenberg

The formula is Probably nearly contemporary with Heron was Menelaus of Alexandria, who wrote a spherical trigonometry.

From Project Gutenberg

These formulae are the foundation of spherical trigonometry.

From Project Gutenberg

When I left Woolwich my coarse in mathematics consisted of plane and spherical trigonometry, conic sections, statics and dynamics, properties of roofs and arches, hydrostatics, projectiles, and the deferential and integral calculus.

From Project Gutenberg