normal trace
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Trace class — In mathematics, a trace class operator is a compact operator for which a trace may be defined, such that the trace is finite and independent of the choice of basis. Trace class operators are essentially the same as nuclear operators, though many… … Wikipedia
Trace en plan d'une route — Tracé en plan (route) Le tracé en plan d une route est, avec le profil en travers et le profil en long, un des trois éléments qui permettent de caractériser la géométrie d’une route. Il est constitué par la projection horizontale sur un repère… … Wikipédia en Français
Tracé en plan d'une route — Tracé en plan (route) Le tracé en plan d une route est, avec le profil en travers et le profil en long, un des trois éléments qui permettent de caractériser la géométrie d’une route. Il est constitué par la projection horizontale sur un repère… … Wikipédia en Français
trace element — trace elements 1) N COUNT A trace element is a chemical element such as iron or zinc that occurs in very small amounts in living things and is necessary for normal growth and development. 2) N COUNT A trace element is a very small amount of a… … English dictionary
trace element — n a chemical element present in minute quantities esp one used by organisms and held essential to their physiology compare MICRONUTRIENT (2) * * * an element that is required in minute concentrations for normal growth and development. Trace… … Medical dictionary
Trace heating — Electric Trace Heating, also known as Electric Heat Tracing and Electric Surface Heating, is a system used to maintain or raise the temperature of pipes and vessels. Trace heating takes the form of a electrical like heating element run in… … Wikipedia
Tracé en plan (route) — Le tracé en plan d une route est, avec le profil en travers et le profil en long, un des trois éléments qui permettent de caractériser la géométrie d’une route. Il est constitué par la projection horizontale sur un repère cartésien topographique… … Wikipédia en Français
Normal operator — In mathematics, especially functional analysis, a normal operator on a complex Hilbert space H (or equivalently in a C* algebra) is a continuous linear operator that commutes with its hermitian adjoint N*: Normal operators are important because… … Wikipedia
trace — 1. v. & n. v.tr. 1 a observe, discover, or find vestiges or signs of by investigation. b (often foll. by along, through, to, etc.) follow or mark the track or position of (traced their footprints in the mud; traced the outlines of a wall). c… … Useful english dictionary
trace element — an element that is required in minute concentrations for normal growth and development. Trace elements include fluorine (see fluoride), manganese, zinc, copper, iodine, cobalt, selenium, molybdenum, chromium, and silicon. They may serve as… … The new mediacal dictionary
trace packet — Packet in a packet switching network that operates as normal packet, but transmits a report of each of its progress stages to the network control center … IT glossary of terms, acronyms and abbreviations
