ordinary+class
21Narrow class group — In algebraic number theory, the narrow class group of a number field K is a refinement of the class group of K that takes into account some information about embeddings of K into the field of real numbers. Contents 1 Formal definition 2 Uses 2.1… …
22Chern class — In mathematics, in particular in algebraic topology and differential geometry, the Chern classes are characteristic classes associated to complex vector bundles. Chern classes were introduced by Shiing Shen Chern (1946). Contents 1 Basic… …
23NZR RM class (Wairarapa) — NZR RM class Wairarapa The sole surviving Wairarapa railcar, RM 5 (Mahuhu), currently undergoing restoration at the Pahiatua Railcar Society. In service 1936–1955 M …
24first-class — [fʉrst′klas′] adj. 1. of the highest class, rank, excellence, etc.; of the best quality 2. designating or of the most expensive accommodations [a first class cabin on a ship ] ☆ 3. designating or of a class of ordinary mail given privileged… …
25Numerical ordinary differential equations — Illustration of numerical integration for the differential equation y = y,y(0) = 1. Blue: the Euler method, green: the midpoint method, red: the exact solution, y = et. The step size is h = 1.0 …
26Working class — is a term used in academic sociology and in ordinary conversation to describe, depending on context and speaker, those employed in specific fields or types of work.As with many terms describing social class, working class is defined and used in… …
27British Rail Class 444 — Desiro South West Trains Class 444 Desiro 444001 at Clapham Junction …
28British Rail Class 43 (HST) — Infobox Locomotive name = British Rail Class 43 powertype = Diesel electric caption = 43058 at Leicester railway station in May 2008 roadnumber = 43002–43198 totalproduction = 197 builder = BREL Crewe Works builddate = 1975–1982 primemover =… …
29DSB Class MY — VL MY 105 (former DSB MY 1145) in Holbæk. Power type Diesel electric Builder Nydqvist Holm AB Build date 1954 – 1958, 196 …
30BR Standard Class 9F — [1] Standard 9F 2 10 0 No. 92126. hauling a freight train on the …
