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1. Trigonometry: Trigonometry is the study of angles. It is a branch of mathematics that is used for algebraic solving in geometry. [100%] 2023-09-21 [Trigonometry] [Secondary_Math_Courses]...
2. Trigonometry: The branch of geometry in which the metric relationships between the elements of a triangle are described in terms of trigonometric functions (see, e.g., Cosine theorem; Sine theorem; Tangent formula), as well as formulas relating the trigonometric functions (so ... (Mathematics) [100%] 2023-09-19
3. Trigonometry: Trigonometry is the study of angles and triangles, relying heavily on three basic functions: sine, cosine and tangent, and their inverses, Cotangent (Cot), Secant (sec) and Cosecant (csc). These functions are abbreviated as "sin", "cos" and "tan". [100%] 2023-02-17 [Mathematics] [Trigonometry]...
4. Trigonometry: . [100%] 2022-09-02
5. Trigonometry: Trigonometry (from grc τρίγωνον (trígōnon) 'triangle', and μέτρον (métron) 'measure') is a branch of mathematics concerned with relationships between angles and ratios of lengths. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical ... (Area of geometry, about angles and lengths) [100%] 2023-09-18 [Trigonometry]
6. Trigonometry: Trigonometry (from Greek Τριγωνομετρία "tri = three" + "gon = angle" + "metr[y] = to measure") is a branch of mathematics that deals with triangles, particularly those plane triangles in which one angle has 90 degrees (right triangles). Trigonometry deals with relationships between the sides ... [100%] 2023-02-04
7. Trigonometrie: Die Trigonometrie (griechisch τρίγωνον trígonon ‚Dreieck‘ und μέτρον métron ‚Maß‘) ist ein Teilgebiet der Geometrie und somit der Mathematik. Soweit Fragestellungen der ebenen Geometrie (Planimetrie) trigonometrisch behandelt werden, spricht man von ebener Trigonometrie; daneben gibt es die sphärische Trigonometrie, die sich mit Kugeldreiecken ... [83%] 2024-07-24
8. Hyperbolic trigonometry: The trigonometry on the Lobachevskii plane (cf. Lobachevskii geometry). (Mathematics) [70%] 2023-10-18
9. Generalized trigonometry: Ordinary trigonometry studies triangles in the Euclidean plane \displaystyle{ \mathbb{R}^2 }[/math]. There are a number of ways of defining the ordinary Euclidean geometric trigonometric functions on real numbers, for example right-angled triangle definitions, unit circle definitions, series ... (Study of triangles in other spaces than the Euclidean plane) [70%] 2023-11-21 [Trigonometry]
10. Plane trigonometry: trigonometry in the Euclidean plane. The elements of a triangle, its sides $ a, b, c $ and its angles $ A, B, C $( $ A $ opposite to $ a $, etc.), are related in various ways. (Mathematics) [70%] 2023-09-12
11. Trigonometry identities: The law of sines for an arbitrary triangle states: or equivalently: The law of cosines (also known as the cosine formula) is an extension of the Pythagorean theorem to arbitrary triangles: or equivalently: Note that are correct, it means it ... [70%] 2023-03-10 [Trigonometry]
12. Spherical trigonometry: The mathematical discipline that studies the interdependence of the sides and angles of spherical triangles (see Spherical geometry). Let $ A, B, C $ be the angles and let $ a, b, c $ be the opposite sides of a spherical triangle $ ABC $. (Mathematics) [70%] 2023-09-09
13. Rational trigonometry: Rational trigonometry is a proposed reformulation of metrical planar and solid geometries (which includes trigonometry) by Canadian mathematician Norman J. Wildberger, currently a professor of mathematics at the University of New South Wales. [70%] 2023-09-21 [Trigonometry] [Articles containing proofs]...
14. Spherical trigonometry: Spherical trigonometry is the branch of spherical geometry that deals with the metrical relationships between the sides and angles of spherical triangles, traditionally expressed using trigonometric functions. On the sphere, geodesics are great circles. (Geometry of figures on the surface of a sphere) [70%] 2024-01-01 [Spherical trigonometry]
15. Trigonometric polynomial: finite trigonometric sum An expression of the form $$ T ( x) = { \frac{a _ {0} }{2} } + \sum _ {k = 1 } ^ { n } ( a _ {k} \cos kx + b _ {k} \sin kx) $$ with real coefficients $ a _ {0} , a _ {k} , b ... (Mathematics) [58%] 2024-01-01
16. Trigonometric function: In mathematics, the trigonometric functions are functions of an angle; they are important when studying triangles and modeling periodic phenomena, among many other applications. They are commonly defined as ratios of two sides of a right triangle containing the angle ... [58%] 2023-06-11
17. Trigonometric tables: In mathematics, tables of trigonometric functions are useful in a number of areas. Before the existence of pocket calculators, trigonometric tables were essential for navigation, science and engineering. (Overview about trigonometric tables) [58%] 2023-09-01 [Trigonometry] [Numerical analysis]...
18. Trigonometric interpolation: In mathematics, trigonometric interpolation is interpolation with trigonometric polynomials. Interpolation is the process of finding a function which goes through some given data points. (Interpolation with trigonometric polynomials) [58%] 2023-12-24 [Interpolation] [Trigonometry]...
19. Trigonometric number: In mathematics, a trigonometric number is an irrational number produced by taking the sine or cosine of a rational multiple of a full circle, or equivalently, the sine or cosine of an angle which in radians is a rational multiple ... [58%] 2024-01-01 [Irrational numbers] [Trigonometry]...
20. Trigonometric interpolation: The approximate representation of a function $f$ in the form of a trigonometric polynomial $$T(x)=A+\sum_{k=1}^n(a_k\cos kx+b_k\sin kx)$$ whose values coincide at prescribed points with the corresponding values of the function ... (Mathematics) [58%] 2023-10-21