# principal square submatrix

- 【数】主子方阵

*English-Chinese computer dictionary (英汉计算机词汇大词典).
2013.*

### Look at other dictionaries:

**LU decomposition**— In linear algebra, LU decomposition (also called LU factorization) is a matrix decomposition which writes a matrix as the product of a lower triangular matrix and an upper triangular matrix. The product sometimes includes a permutation matrix as… … Wikipedia**List of mathematics articles (S)**— NOTOC S S duality S matrix S plane S transform S unit S.O.S. Mathematics SA subgroup Saccheri quadrilateral Sacks spiral Sacred geometry Saddle node bifurcation Saddle point Saddle surface Sadleirian Professor of Pure Mathematics Safe prime Safe… … Wikipedia**Matrix multiplication**— In mathematics, matrix multiplication is a binary operation that takes a pair of matrices, and produces another matrix. If A is an n by m matrix and B is an m by p matrix, the result AB of their multiplication is an n by p matrix defined only if… … Wikipedia**Computing the permanent**— In mathematics, the computation of the permanent of a matrix is a problem that is believed to be more complex than the computation of the determinant of a matrix despite the apparent similarity of the definitions. The permanent is defined… … Wikipedia**Completely-S matrix**— For scattering matrix in physics, see S matrix. In linear algebra, a completely S matrix is a square matrix such that for every principal submatrix R there exists a positive vector u such that Ru > 0.[1] Notes ^ Chen, Hong (1996). A sufficient … Wikipedia