0 the set of conditions that provides a system in which something grows or develops -- （事物成长发展的）条件，环境
Europe is remaking itself politically within the matrix of the European Community. 欧洲将在欧共体的环境下重塑政治版图。
1 a group of numbers or other symbols arranged in a rectangle that can be used together as a single unit to solve particular mathematical problems -- （数学上的）矩阵
2 a substance in which other things are fixed, buried, etc. -- 脉石；母岩；基岩
Table 1 presents the correlation matrices, means, and standard deviations for the models forecasting externalizing and internalizing symptoms.
The latter affords ample motivation for studying weak equivalence for arbitrary primitive matrices and not just those that match unimodal kneading sequences.
The amplitudes of incoming and outgoing modes for both fields are related by scattering matrices.
Connected simple systems, transition matrices and heteroclinic bifurcations.
In the case of the orthogonal group the generators must be skew symmetric matrices.
The present paper offers a better solution to this problem, using density matrices and superoperators instead of probability distributions.
To relate the sign of diagonal elements to the sign of the real parts of eigenvalues, we introduce the following dominant diagonal properties of matrices.
All operations are organised in relation to this base: in particular, they can be represented by linear functions whose matrices are diagonal in this base.
