spherical trigonometry

American

noun

the branch of trigonometry that deals with spherical triangles.

spherical trigonometry British

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of spherical trigonometry

First recorded in 1720–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

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