trigonometry

Енглески

Etymology

PIE реч
*tréyes

From 1610s, from , from + μέτρον (métron, “measure”).

Pronunciation

• МФА^(кључ): /ˌtɹɪɡəˈnɒmətɹi/

• Audio (Southern England)

  (file)

Noun

1. The branch of mathematics that deals with the relationships between the sides and angles of (in particular) right-angled triangles, as represented by the trigonometric functions, and with calculations based on said relationships.
   • 1892, Edward Albert Bowser, A Treatise on Plane and Spherical Trigonometry, D. C. Heath & Co., page 1,

     Trigonometry was originally the science which treated only of the sides and angles of plane and spherical triangles; but it has been recently extended so as to include the analytic treatment of all theorems involving the consideration of angular magnitudes.

   • 2013, Paul Abbott, Hugh Neill, Trigonometry: A Complete Introduction, Hachette, unnumbered page,

     In fact, the earliest practical uses of trigonometry were in the fields of astronomy and hence navigation.

   • 2016, Carl F. Lorenzo, Tom T. Hartley, The Fractional Trigonometry, Wiley, page 8,

     The properties of these new trigonometries and identities flowing from the definitions are then developed.

     The trigonometries derived from these generalizations will be jointly termed "The Fractional Trigonometry."

Synonyms

• (branch of mathematics): trig (informal, abbreviation)

Derived terms

• plane trigonometry
• spherical trigonometry

Related terms

• geometry
• trigon
• trigonometric
• trigonometrist

Translations

branch of mathematics

• Arabic: عِلْم اَلْمُثَلَثَات‎ m (ʿilm al-muṯalaṯāt), عِلْم حِسَاب اَلْمُثَلَثَات‎ m (ʿilm ḥisāb al-muṯalaṯāt), حِسَاب اَلْمُثَلَثَات‎ m (ḥisāb al-muṯalaṯāt)
• Armenian: եռանկյունաչափություն (hy) (eṙankyunačʿapʿutʿyun)
• Bulgarian: тригономе́трия (bg) f (trigonométrija)
• Catalan: trigonometria f
• Chinese:

  Mandarin: 三角法 (zh) (sānjiǎofǎ), 三角學 (zh), 三角学 (zh) (sānjiǎoxué)

• Czech: trigonometrie (cs) f
• Danish: trigonometri c
• Esperanto: trigonometrio
• Finnish: trigonometria (fi)
• French: trigonométrie (fr) f
• Galician: trigonometría (gl) f
• Georgian: ტრიგონომეტრია (ṭrigonomeṭria)
• German: Trigonometrie (de) f
• Hindi: त्रिकोणमिति (hi) f (trikoṇmiti)
• Hungarian: trigonometria (hu)
• Icelandic: hornafræði f
• Irish: triantánacht
• Italian: trigonometria (it) f
• Japanese: 三角法 (ja) (さんかくほう, sankakuhō)

• Korean: 삼각법(三角法) (ko) (samgakbeop)
• Latin: trigonometria f
• Latvian: trigonometrija f
• Lithuanian: trigonometrija f
• Macedonian: тригономе́трија f (trigonométrija)
• Norwegian:

  Bokmål: trigonometri (no) m

• Persian: مثلثات‎ (fa) (mosalasat)
• Polish: trygonometria (pl) f
• Portuguese: trigonometria (pt) f
• Romanian: trigonometrie (ro) f
• Russian: тригономе́трия (ru) f (trigonométrija)
• Sindhi: ٽِڪُنڊپيمائِش‎ (sd) f
• Spanish: trigonometría (es) f
• Swedish: trigonometri (sv) c
• Tagalog: tatsihaan
• Telugu: త్రికోణమితి (te) (trikōṇamiti)
• Thai: ตรีโกณมิติ
• Turkish: trigonometri (tr)
• Vietnamese: lượng giác học

Further reading

• Trigonometric functions на Википедији.Википедији
• Trigonometric tables на Википедији.Википедији
• Pythagorean trigonometric identity на Википедији.Википедији
• List of trigonometric identities на Википедији.Википедији