- principal coordinates
- нормальные координаты
Большой англо-русский и русско-английский словарь. 2001.
Большой англо-русский и русско-английский словарь. 2001.
Principal components analysis — Principal component analysis (PCA) is a vector space transform often used to reduce multidimensional data sets to lower dimensions for analysis. Depending on the field of application, it is also named the discrete Karhunen Loève transform (KLT),… … Wikipedia
Principal axis theorem — In the mathematical fields of geometry and linear algebra, a principal axis is a certain line in a Euclidean space associated to an ellipsoid or hyperboloid, generalizing the major and minor axes of an ellipse. The principal axis theorem states… … Wikipedia
Principal component analysis — PCA of a multivariate Gaussian distribution centered at (1,3) with a standard deviation of 3 in roughly the (0.878, 0.478) direction and of 1 in the orthogonal direction. The vectors shown are the eigenvectors of the covariance matrix scaled by… … Wikipedia
Principal Galaxies Catalogue — The Catalogue of Principal Galaxies (PGC) is an astronomical catalogue published in 1989 that lists B1950 and J2000 equatorial coordinates and cross identifications for 73,197 galaxies. The 40,932 coordinates have standard deviations smaller than … Wikipedia
Hamilton's principal function — The Hamilton s principal function is defined by the Hamilton–Jacobi equation (HJE), another alternative formulation of classical mechanics. This function S is related to the usual action, mathcal{S}, by fixing the initial time t {1} and endpoint… … Wikipedia
Generalized coordinates — By deriving equations of motion in terms of a general set of generalized coordinates, the results found will be valid for any coordinate system that is ultimately specified. cite book |last=Torby |first=Bruce |title=Advanced Dynamics for… … Wikipedia
Action-angle coordinates — In classical mechanics, action angle coordinates are a set of canonical coordinates useful in solving many integrable systems. The method of action angles is useful for obtaining the frequencies of oscillatory or rotational motion without solving … Wikipedia
Axes of coordinates in a plane — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… … The Collaborative International Dictionary of English
Axes of coordinates in space — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… … The Collaborative International Dictionary of English
Cupertino Language Immersion Program — (CLIP) is an alternative K 8 education program located at R.I. Meyerholz Elementary (K 5) and Sam H. Lawson Middle School (6 8) in the Cupertino Union School District (CUSD). It is one of four alternative programs in the district where enrollment … Wikipedia
Multivariate statistics — is a form of statistics encompassing the simultaneous observation and analysis of more than one statistical variable. The application of multivariate statistics is multivariate analysis. Methods of bivariate statistics, for example simple linear… … Wikipedia