different between trigon vs trigonometry

English

Etymology

From Ancient Greek ???????? (tríg?non, “triangle”), neuter substantive of ???????? (tríg?nos, “three-sided”), from ????? (treîs, “three”) + ????? (g?nía, “bend, angle”). Equivalent to tri- +? -gon. Doublet of trigonon.

Pronunciation

• IPA^(key): /?t?a???n/, /?t?a???n/
• Hyphenation: tri?gon

Noun

trigon (countable and uncountable, plural trigons)

1. (countable, geometry, rare) A triangle.
2. (countable, historical, music) An ancient triangular harp of Oriental origin which had four strings and was often used for banquet music. Also called sabbeka, sackbut, sambuca.
3. (countable, astrology) A division consisting of three signs.
4. (countable, astrology) A trine; an aspect of two planets distant 120 degrees from each other.

   (Can we find and add a quotation of Hutton to this entry?)

5. (uncountable, historical) An old ball game played by three people standing in a triangular formation.
6. (countable, zoology) The cutting region of the crown of an upper molar, usually the anterior part.

Related terms

Translations

Anagrams

• Girton, Tignor, orting, roting

Gothic

Romanization

trig?n

1. Romanization of ????????????????????????

Romanian

Etymology

From French trigone.

Noun

trigon n (plural trigoane)

1. trigone

Declension

English

Etymology

From 1610s, from New Latin trig?nometria, from Ancient Greek ???????? (tríg?non, “triangle”) + ?????? (métron, “measure”).

Pronunciation

• IPA^(key): /?t?????n?m?t?i/

Noun

trigonometry (countable and uncountable, plural trigonometries)

1. (geometry, mathematical analysis) 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

Further reading

• Trigonometric functions on Wikipedia.Wikipedia
• Trigonometric tables on Wikipedia.Wikipedia
• Pythagorean trigonometric identity on Wikipedia.Wikipedia
• List of trigonometric identities on Wikipedia.Wikipedia

References