equivalent matrices
61Computational electromagnetics — Computational electromagnetics, computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment. It typically involves using computationally… …
62Projective transformation — A projective transformation is a transformation used in projective geometry: it is the composition of a pair of perspective projections. It describes what happens to the perceived positions of observed objects when the point of view of the… …
63Matériau composite — Exemple de matériau composite Le matériau composite est un assemblage d au moins deux matériaux non miscibles (mais ayant une forte capacité d adhésion). Le nouveau matériau ainsi constitué possède des propriétés que les éléments seuls ne… …
64Structural alignment — is a form of sequence alignment based on comparison of shape. These alignments attempt to establish equivalences between two or more polymer structures based on their shape and three dimensional conformation. This process is usually applied to… …
65Spin — Pour les articles homonymes, voir Spin (homonymie). Interaction d un quark (boule rouge) et d un gluon (boule verte) issus de deux protons (boules orange) dont la projection du spin, représentée par l …
66Mathematics of radio engineering — A complex valued function. The mathematics of radio engineering is a pleasant and very useful subject. This article is an attempt to provide a reasonably comprehensive summary of this almost limitless topic. While the ideas have historically… …
67Transpose — This article is about the transpose of a matrix. For other uses, see Transposition In linear algebra, the transpose of a matrix A is another matrix AT (also written A′, Atr or At) created by any one of the following equivalent actions: reflect A… …
68Orientation (geometry) — This article is about the orientation or attitude of an object in space. For orientation as a property in linear algebra, see Orientation (vector space). Changing orientation of a rigid body is the same as rotating the axes of a reference frame… …
69Permanent is sharp-P-complete — The correct title of this article is Permanent is #P complete. The substitution or omission of the # sign is because of technical restrictions. In a 1979 paper Leslie Valiant proved[1] that the problem of computing the permanent of a matrix is #P …
70Rasterisation — Rastérisation La rastérisation est un procédé qui consiste à convertir une image vectorielle en une image matricielle destinée à être affichée sur un écran ou imprimée par un matériel d impression. Les scènes en 3D dimensions étant généralement… …
