Coordinates (mathematics) — Coordinates are numbers which describe the location of points in a plane or in space. For example, the height above sea level is a coordinate which is useful for describing points near the surface of the earth. A coordinate system, in a plane or… … Wikipedia
Plane at infinity — In projective geometry, the plane at infinity is a projective plane which is added to the affine 3 space in order to give it closure of incidence properties. The result of the addition is the projective 3 space, P^3 . If the affine 3 space is… … Wikipedia
Plane curve — In mathematics, a plane curve is a curve in a Euclidean plane (cf. space curve). The most frequently studied cases are smooth plane curves (including piecewise smooth plane curves), and algebraic plane curves. A smooth plane curve is a curve in a … Wikipedia
plane polar coordinates — plokštuminės polinės koordinatės statusas T sritis fizika atitikmenys: angl. plane polar coordinates vok. ebene Polarkoordinaten, f rus. полярные координаты на плоскости, f pranc. coordonnées polaires planes, f … Fizikos terminų žodynas
coordinates — Linear or angular quantities which designate the position that a point occupies in a given reference frame or system. Also used as a general term to designate the particular kind of reference frame or system such as plane rectangular coordinates… … Military dictionary
Plücker coordinates — In geometry, Plücker coordinates, introduced by Julius Plücker in the 19th century, are a way to assign six homogenous coordinates to each line in projective 3 space, P 3. Because they satisfy a quadratic constraint, they establish a one to one… … Wikipedia
polar coordinates — /poʊlə koʊˈɔdənəts/ (say pohluh koh awduhnuhts) plural noun a system of plane coordinates in which the position of a point is determined by the length of its radius vector from a fixed origin and the angle this vector makes with a fixed line …
grid coordinates — Coordinates of a grid coordinate system to which numbers and letters are assigned to designate a point on a gridded map, photograph, or chart. The system facilitates the conversion of latitude and longitude and other earth measures on a flat… … Aviation dictionary
Oblate spheroidal coordinates — Figure 1: Coordinate isosurfaces for a point P (shown as a black sphere) in oblate spheroidal coordinates (μ, ν, φ). The z axis is vertical, and the foci are at ±2. The red oblate spheroid (flattened sphere) corresponds to μ=1, whereas the blue… … Wikipedia
Line coordinates — In geometry, line coordinates are used to specify the position of a line just as point coordinates (or simply coordinates) are used to specify the position of a point. Contents 1 Lines in the plane 2 Tangential equations 3 Tangential equation of… … Wikipedia
Homogeneous coordinates — In mathematics, homogeneous coordinates, introduced by August Ferdinand Möbius in his 1827 work Der barycentrische Calcul [ [http://www history.mcs.st andrews.ac.uk/Biographies/Mobius.html Mobius biography ] ] , allow affine transformations to be … Wikipedia
