主要说了个什么事呢,意思就是假设随机生成一个n×nn×n的矩阵,绝大多数情况这个矩阵都是可逆的,也可以理解为它的行列式不为0。换句话说,不可逆的情况是少见的,所以不可逆矩阵就称为Singular matrix,这里的singular就是special, not common的意思啊。同理,可逆矩阵很常见,所以就是非奇异矩阵了。 举个例子就更好...
主要说了个什么事呢,意思就是假设随机生成一个\(n×n\)的矩阵,绝大多数情况这个矩阵都是可逆的,也可以理解为它的行列式不为0。换句话说,不可逆的情况是少见的,所以不可逆矩阵就称为Singular matrix,这里的singular就是special, not common的意思啊。同理,可逆矩阵很常见,所以就是非奇异矩阵了。 举个例子就更...
主要说了个什么事呢,意思就是假设随机生成一个(n×n)的矩阵,绝大多数情况这个矩阵都是可逆的,也可以理解为它的行列式不为0。换句话说,不可逆的情况是少见的,所以不可逆矩阵就称为Singular matrix,这里的singular就是special, not common的意思啊。同理,可逆矩阵很常见,所以就是非奇异矩阵了。 举个例子就更好明...
A square matrix that is not singular, i.e., one that has a matrix inverse. Nonsingular matrices are sometimes also called regular matrices. A square matrix is nonsingular iff its determinant is nonzero (Lipschutz 1991, p. 45). For example, there are 6 nonsingular (0,1)-matrices: ...
Define nonsexual. nonsexual synonyms, nonsexual pronunciation, nonsexual translation, English dictionary definition of nonsexual. adj not of, relating to, or characterized by sex or sexuality Collins English Dictionary – Complete and Unabridged, 12th Ed
For example, SCI [187] models structural closeness as minU⩾0‖S−UUT‖F2 and attribute homogeneity as minV⩾0‖U−AV‖F2. It is also proposed to select the most relevant attributes for each community by adding an l1 norm sparsity term to each column of matrix V. As a result, ...
partial matrix, affine column independent matrix, completion, determi- nant, singular, nonsingular, rank. 1 Introduction Let F be a field. A partial matrix over F is a matrix in which some entries are specified as elements of F, and the other entries are unspecified and can be...
对角占优矩阵充分条件不等式From the concept of a diagonally dominant matrix, two sufficient conditions of nonsingular H-matrices were obtained in this paper. An example was given to show that these results improve the known results.王广彬洪振杰高中喜Advances in Manu facturing(先进制造进展(英文))...
Matrix size: A matrix is a data array of elements arranged into rows and columns. The size of the matrix usually gives the number of rows and columns in a matrix. For example a 3 x 2 matrix has three rows and two columns. The number of rows in the matrix always comes first in the...
NNMF实现了非负双神秘值分解( Nonnegative Double Singular Value Decomposition,NNDSVD)。NNDSVD基于两个SVD过程。一个SVD过程用来近似数据矩阵,还有一个SVD过程利用单位秩矩阵的代数性质来近似第一步产生的SVD因子的正值部分。NNDSVD的基本实现能非常好地用于稀疏矩阵分解。