polar coordinate
101Phasor (sine waves) — In physics and engineering, a phase vector ( phasor ) is a representation of a sine wave whose amplitude (A), phase (θ), and frequency (ω) are time invariant. It is a subset of a more general concept called analytic representation. Phasors reduce …
102Hankel transform — Besides the meaning discussed in this article, the Hankel transform may also refer to the determinant of the Hankel matrix of a sequence .In mathematics, the Hankel transform of order nu; of a function f ( r ) is given by::F u(k) = int 0^infty… …
103Meridian (perimetry, visual field) — This article is about the perimetry concept. For other uses of the word, see Meridian. Meridian is used in perimetry and in specifying visual fields. According to IPS Perimetry Standards 1978 (2002): Perimetry is the measurement of [an observer… …
104Origin — Origin, origins, or original may refer to: Contents 1 Beginning of the universe and life 2 Science and technology 3 Computer …
105PCS — may refer to: Contents 1 Medicine 2 Military 3 Science and technology 4 Other fields Medicine Post …
106Ephemeris — An ephemeris (plural: ephemerides; from the Greek word ἐφήμερος ephemeros daily ) is a table of values that gives the positions of astronomical objects in the sky at a given time or times. Different kinds are used for astronomy and astrology.… …
107Object lifetime — In computer science, the object lifetime (or life cycle) of an object in object oriented programming is the time between an object s creation (also known as instantiation or construction) till the object is no longer used, and is destructed or… …
108List of curve topics — This is a list of curve topics in mathematics. See also curve, list of curves, and list of differential geometry topics.*acnode *algebraic curve *arc *asymptote *asymptotic curve *Barbier s theorem *barycentric… …
109Tetrad (index notation) — In Riemannian geometry, we can introduce a coordinate system over the Riemannian manifold (at least, over a chart), giving n coordinates :xi, i=1,...,n for an n dimensional manifold. Locally, at least, this gives a basis for the 1 forms, dxi… …
110High Capacity Color Barcode — An example of a High Capacity Color Barcode: a Microsoft Tag referring to the HCCB article on the English Wikipedia High Capacity Color Barcode (HCCB) is the name coined by Microsoft for its technology of encoding data in a 2D barcode using… …
