some of these properties
21Rotation matrix — In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix rotates points in the xy Cartesian plane counterclockwise through an angle θ about the origin of the Cartesian… …
22Mean — This article is about the statistical concept. For other uses, see Mean (disambiguation). In statistics, mean has two related meanings: the arithmetic mean (and is distinguished from the geometric mean or harmonic mean). the expected value of a… …
23Strong AI — For John Searle s Strong AI hypothesis, see Philosophy of artificial intelligence Strong AI is artificial intelligence that matches or exceeds human intelligence the intelligence of a machine that can successfully perform any intellectual task… …
24Private equity real estate — In investment finance, private equity real estate is an asset class consisting of equity and debt investments in property. Investments typically involve an active management strategy ranging from moderate reposition or releasing of properties to… …
25Universal grammar — is a theory of linguistics postulating principles of grammar shared by all languages, thought to be innate to humans (linguistic nativism). It attempts to explain language acquisition in general, not describe specific languages. Universal grammar …
26Cosmic Origins Spectrograph — The Cosmic Origins Spectrograph on its handling cart in the Spacecraft Systems Development Facility cleanroom at the Goddard Space Flight Center The Cosmic Origins Spectrograph (COS) is a science instrument that was installed on the Hubble Space… …
27Measuring principle — A sender emits a wave which is scattered by an object. The backscattered part of the wave reaches a receiver: The measurement principle of sonar and radar devices …
28Climate of south-west England — The Met Office region of south west England, shown within England.[1] The climate of south west England is classed as oceanic (Cfb) according to the K …
29Elfdalian — Infobox Language name=Elfdalian nativename=Övdalsk familycolor=Indo European states=Sweden region=Elfdalia (Dalecarlia County) (Northern Europe) speakers=Around 3000 fam2=Germanic fam3=North Germanic fam4=East Scandinavian fam4=Dalecarlian… …
30Elfdalian language — Övdalian/Elfdalian Övdalsk Spoken in Sweden Region Elfdalia (Dalecarlia County) (Northern Europe) Native speakers Around 3000  (date missing) …
