ill-conditioned
51Non-linear least squares — is the form of least squares analysis which is used to fit a set of m observations with a model that is non linear in n unknown parameters (m > n). It is used in some forms of non linear regression. The basis of the method is to… …
52Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… …
53þéawléas — adj ill mannered, ill conditioned …
54malady — late 13c., from O.Fr. maladie sickness, illness, disease (13c.), from malade ill (12c.), from L. male habitus doing poorly, feeling sick, lit. ill conditioned, from male badly (see MAL (Cf. mal )) + habitus, pp. of habere have, hold (see …
55starveling — I. a. Lean, meagre, lank, emaciated, gaunt, skinny, scraggy, raw boned, hungry, thin, attenuated, ill fed, ill conditioned. II. n. Pauper, mendicant, beggar …
56Rascal — Ras cal (r[a^]s kal), n. [OE. rascaille rabble, probably from an OF. racaille, F. racaille the rabble, rubbish, probably akin to F. racler to scrape, (assumed) LL. rasiculare, rasicare, fr. L. radere, rasum. See {Rase}, v.] [1913 Webster] 1. One… …
57Root-finding algorithm — A root finding algorithm is a numerical method, or algorithm, for finding a value x such that f(x) = 0, for a given function f. Such an x is called a root of the function f. This article is concerned with finding scalar, real or complex roots,… …
58Rounding — This article is about numerical rounding. For lip rounding in phonetics, see Labialisation. For other uses, see Rounding (disambiguation). Rounding a numerical value means replacing it by another value that is approximately equal but has a… …
59Molecular dynamics — (MD) is a computer simulation of physical movements of atoms and molecules. The atoms and molecules are allowed to interact for a period of time, giving a view of the motion of the atoms. In the most common version, the trajectories of molecules… …
60Invertible matrix — In linear algebra an n by n (square) matrix A is called invertible (some authors use nonsingular or nondegenerate) if there exists an n by n matrix B such that where In denotes the n by n identity matrix and the multiplication used is ordinary… …
