elliptic form
51Peltae — Pelta Pel ta, n.; pl. {Pelt[ae]}. [L., a shield, fr. Gr. ?.] 1. (Antiq.) A small shield, especially one of an approximately elliptic form, or crescent shaped. [1913 Webster] 2. (Bot.) A flat apothecium having no rim. [1913 Webster] …
52Skene — SKENE, a parish, in the district and county of Aberdeen, 9 miles (W. by. N.) from the city of Aberdeen; containing 1846 inhabitants. This place, which is of some antiquity, was originally part of the royal forests of the kings of Scotland, and …
53Elliptical — Elliptic El*lip tic, Elliptical El*lip tic*al, a. [Gr. ?: cf. F. elliptique. See {Ellipsis}.] 1. Of or pertaining to an ellipse; having the form of an ellipse; oblong, with rounded ends. [1913 Webster] The planets move in elliptic orbits. Cheyne …
54Riemannian geometry — Elliptic geometry is also sometimes called Riemannian geometry. Riemannian geometry is the branch of differential geometry that studies Riemannian manifolds, smooth manifolds with a Riemannian metric , i.e. with an inner product on the tangent… …
55ellipticity — elliptic ► ADJECTIVE ▪ relating to or having the form of an ellipse. DERIVATIVES ellipticity noun …
56mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… …
57Cnoidal wave — US Army bombers flying over near periodic swell in shallow water, close to the Panama coast (1933). The sharp crests and very flat troughs are characteristic for cnoidal waves. In fluid dynamics, a cnoidal wave is a nonlinear and exact periodic… …
58Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
59Möbius transformation — Not to be confused with Möbius transform or Möbius function. In geometry, a Möbius transformation of the plane is a rational function of the form of one complex variable z; here the coefficients a, b, c, d are complex numbers satisfying ad − …
60Partial differential equation — A visualisation of a solution to the heat equation on a two dimensional plane In mathematics, partial differential equations (PDE) are a type of differential equation, i.e., a relation involving an unknown function (or functions) of several… …
