exact triangle
1Exact trigonometric constants — Exact constant expressions for trigonometric expressions are sometimes useful, mainly for simplifying solutions into radical forms which allow further simplification.All values of sine, cosine, and tangent of angles with 3° increments are… …
2Triangle Lake, Oregon — Triangle Lake is an unincorporated communitycite web |url=http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3 FID:1130796 |title=Feature Query Results |publisher= United States Board on Geographic Names, United States Geological Survey… …
3Triangle (homonymie) — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sur les autres projets Wikimedia : « Triangle (homonymie) », sur le Wiktionnaire (dictionnaire universel) Le mot « triangle », du …
4Triangle (instrument) — Infobox Instrument name=Triangle classification=Hand percussion, idiophone range=Single note, open and closedThe triangle is an idiophone type of musical instrument in the percussion family. It is a bar of metal, usually steel in modern… …
5Heronian triangle — In geometry, a Heronian triangle is a triangle whose sidelengths and area are all rational numbers. It is named after Hero of Alexandria.PropertiesAny triangle whose sidelengths are a Pythagorean triple is Heronian, as the sidelengths of such a… …
6Ixil Triangle — The Ixil Triangle is a name given to three neighboring towns in the Quiché department in the western highlands of Guatemala. These towns are Santa Maria Nebaj, San Juan Cotzal, and San Gaspar Chajul and its population is predominantly of Ixil… …
7Heilbronn triangle problem — In mathematics, the Heilbronn triangle problem is a typical question in the area of irregularities of distribution, within elementary geometry.Consider region D in the plane: a unit circle or general polygon mdash; the asymptotics of the problem …
8Eastern Triangle Butterflyfish — Not to be confused with the Triangle Butterflyfish (C. triangulum) and the Triangulate Butterflyfish (C. trifascialis). Eastern Triangle Butterflyfish Scientific classification Kingdom …
9Cotangent complex — In mathematics the cotangent complex is a roughly a universal linearization of a morphism of geometric or algebraic objects. Cotangent complexes were originally defined in special cases by a number of authors. Luc Illusie, Daniel Quillen, and M.… …
10Mathematics and art — have a long historical relationship. The ancient Egyptians and ancient Greeks knew about the golden ratio, regarded as an aesthetically pleasing ratio, and incorporated it into the design of monuments including the Great Pyramid,[1] the Parthenon …
