commute
111Groupe parfait — En théorie des groupes (mathématiques), un groupe est dit parfait s il est égal à son dérivé. Sommaire 1 Exemples et contre exemples 2 Lemme de Grün 3 Notes et références …
112TÉLÉCOMMUNICATIONS - Téléinformatique — La téléinformatique a pour objet de transmettre à distance l’information codée reçue ou émise par un système informatique sans en changer la signification. Ce mot est composé de télé , préfixe commun à l’ensemble des techniques de… …
113Portland, Oregon — Portland   City   City of Portland Portland s skyline from the west, with Mount Hood on the left …
114Hypercomplex number — The term hypercomplex number has been used in mathematics for the elements of algebras that extend or go beyond complex number arithmetic.Hypercomplex numbers have had a long lineage of devotees including Hermann Hankel, Georg Frobenius, Eduard… …
115Palo Alto, California — Palo Alto redirects here. For other uses, see Palo Alto (disambiguation). City of Palo Alto   City   Palo Alto Skyline …
116Sonoma County, California — For the wine region, see Sonoma County wine. County of Sonoma   County   Lake Sonoma …
117Rialto, California — Infobox Settlement official name = City of Rialto other name = native name = nickname = motto = Bridge to Progress imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem = blank emblem size =… …
118Vallentuna Municipality — Infobox Kommun2 fullname=Vallentuna kommun county=Stockholm County province=Uppland capital=Vallentuna arearank=222nd area=371.19 arealand=360.06 populationrank=86th population=27,868 densityrank=68th populationdensity=77.4… …
119Del — For other uses, see Del (disambiguation). ∇ Del operator, represented by the nabla symbol In vector calculus, del is a vector differential operator, usually represented by the nabla symbol . When applied to a function defined on a one dimensional …
120Normal matrix — A complex square matrix A is a normal matrix if where A* is the conjugate transpose of A. That is, a matrix is normal if it commutes with its conjugate transpose. If A is a real matrix, then A*=AT. Hence, the matrix is normal if ATA = AAT.… …
