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Trigonometry

Trigonometry (from Ancient Greek τρίγωνον (trígōnon) 'triangle' and μέτρον (métron) 'measure') is a branch of mathematics concerned with relationships between angles and side lengths of triangles. In particular, the trigonometric functions relate the angles of a right triangle with ratios of its side lengths. The field emerged in the Hellenistic world…

History, Applications, Art & Measurement

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Overview

History

Trigonometric ratios

Trigonometric functions of real or complex variables

Applications

Bibliography

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Trigonometry

Nodes154
Edges153
Triples70
Avg. degree1.99
Density0.012987
Components1

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Trigonometry

Top relations

related to history · 25
Trigonometry → AD, Alexandria, Almagest, Archimedes, Asia Minor, Babylonians, BC, Book, Byzantine, Centuries, Egypt, Euclid, Greco-Egyptian, Hellenistic, Hipparchus, In, Islamic, Nicaea, Nubians, Ptolemy
related to External links · 13
Trigonometry → Alfred Monroe Kenyon, Benjamin Banneker's Trigonometry Puzzle, Clark UniversityTrigonometry, ConvergenceDave's Short Course, Covers, David Joyce, Distributed, GNU Free Documentation License, In, Khan Academy, Louis Ingold, Michael Corral, The Macmillan Company
related to Mnemonics · 9
Trigonometry → Acid, Another, Another Hippie Trippin' On, For, Krakatoa, One, SOH-CAH-TOA, SOH-kə-TOH-ə, Some Old Hippie Caught
has application · 2
Trigonometry → CT, Other
related to Astronomy · 2
Trigonometry → For, In
related to Identities · 2
Trigonometry → Identities, Other
related to Navigation · 2
Trigonometry → Global Positioning System, Historically
related to Surveying · 2
Trigonometry → In, On
related to Optics and acoustics · 1
Trigonometry → In
see also · 1
Trigonometry → Aryabhata's

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Important terminology

trigonometric functions sine used identities ratios angle triangle angles tables side cosine navigation sides following century astronomy right known lengths

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
geodesyinstance oftrigonometry has been applied in areas0.80text
surveyinginstance oftrigonometry has been applied in areas0.80text
celestial mechanicsinstance oftrigonometry has been applied in areas0.80text
and navigation.Trigonometry is known for its many identitiesinstance oftrigonometry has been applied in areas0.80text
Euclidinstance ofHellenistic mathematicians0.80text
Archimedes studied the properties of chordsinstance ofHellenistic mathematicians0.80text
inscribed angles in circlesinstance ofHellenistic mathematicians0.80text
and they proved theorems that are equivalent to modern trigonometric formulaeinstance ofHellenistic mathematicians0.80text
although they presented them geometrically rather than algebraicallyinstance ofHellenistic mathematicians0.80text
Al Battaniinstance ofKnowledge of trigonometric functions and methods reached Western Europe via Latin translations of Ptolemy's Greek Almagest as well as the works of Persian and Arab astronomers0.80text
Nasir al-Din al-Tusiinstance ofKnowledge of trigonometric functions and methods reached Western Europe via Latin translations of Ptolemy's Greek Almagest as well as the works of Persian and Arab astronomers0.80text
Trigonometryhas applicationOther0.60section

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