Crest factor — The crest factor or peak to average ratio (PAR) or peak to average power ratio (PAPR) is a measurement of a waveform, calculated from the peak amplitude of the waveform divided by the RMS value of the waveform. It is therefore a dimensionless… … Wikipedia
Structure factor — In physics, in the area of crystallography, the structure factor of a crystal is a mathematical description of how the crystal scatters incident radiation. The structure factor is a particularly useful tool in the interpretation of interference… … Wikipedia
List of mathematics articles (T) — NOTOC T T duality T group T group (mathematics) T integration T norm T norm fuzzy logics T schema T square (fractal) T symmetry T table T theory T.C. Mits T1 space Table of bases Table of Clebsch Gordan coefficients Table of divisors Table of Lie … Wikipedia
List of triangle topics — This list of triangle topics includes things related to the geometric shape, either abstractly, as in idealizations studied by geometers, or in triangular arrays such as Pascal s triangle or triangular matrices, or concretely in physical space.… … Wikipedia
Block reflector — A block reflector is an orthogonal, symmetric matrix that reverses a subspace whose dimension may be greater than one. * see abstract here http://locus.siam.org/SINUM/volume 25/art 0725014.htmlIt is built out of many elementary reflectors.It is… … Wikipedia
Elementary reflector — An elementary reflector is also referred to as a triangular factor, and is a triangular matrix. Elementary reflectors are used in the Householder transformation … Wikipedia
QR — may stand for:*Quintana Roo (company), a triathlon specific wetsuit and bicycle company *Karakalpakstan (Qoraqalpog iston Respublikasi), Uzbekistan, under ISO 3166 2 subcode UZ QR *Nippon Cultural Broadcasting, inc., a radio network in Tokyo,… … Wikipedia
Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… … Wikipedia
Computer for operations with functions — Computer for operations with mathematical functions (unlike the usual computer) operates with functions at the hardware level (i.e. without programming these operations).[1][2][3] Contents 1 History … Wikipedia
china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material … Universalium
