Input matrix.diagreturns an error ifndims(A) > 2. diag([])returns an empty matrix,[]. Data Types:single|double|int8|int16|int32|int64|uint8|uint16|uint32|uint64|logical|char Complex Number Support:Yes Diagonal number, specified as an integer.k=0represents the main diagonal,k>0is abov...
Input matrix.diagreturns an error ifndims(A) > 2. diag([])returns an empty matrix,[]. Data Types:single|double|int8|int16|int32|int64|uint8|uint16|uint32|uint64|logical|char Complex Number Support:Yes Diagonal number, specified as an integer.k=0represents the main diagonal,k>0is abov...
Create Diagonal Matrices Create a 1-by-5 vector. v = [2 1 -1 -2 -5]; Usediagto create a matrix with the elements ofvon the main diagonal. D = diag(v) D =5×52 0 0 0 0 0 1 0 0 0 0 0 -1 0 0 0 0 0 -2 0 0 0 0 0 -5 ...
Create Diagonal Matrices Create a 1-by-5 vector. v = [2 1 -1 -2 -5]; Usediagto create a matrix with the elements ofvon the main diagonal. D = diag(v) D =5×52 0 0 0 0 0 1 0 0 0 0 0 -1 0 0 0 0 0 -2 0 0 0 0 0 -5 ...
Create Matrix with Diagonal as Vector Create a symbolic matrix with the main diagonal specified by the vector v. syms a b c v = [a b c]; diag(v) ans = [ a, 0, 0] [ 0, b, 0] [ 0, 0, c] Create Matrix with Subdiagonal as Vector Create a symbolic matrix with the second ...
Create Matrix with Diagonal as Vector Create a symbolic matrix with the main diagonal specified by the vector v. syms a b c v = [a b c]; diag(v) ans = [ a, 0, 0] [ 0, b, 0] [ 0, 0, c] Create Matrix with Subdiagonal as Vector Create a symbolic matrix with the second ...
You can also use the diag() function to get the diagonal value of the matrix. 上三角矩阵和下三角矩阵分别使用triu()和tril()函数取得。 The upper triangular matrix and lower triangular matrix are obtained using the triu() and tril() functions respectively. ...
% Construct the block diagonal matrix % まずブロック対角行列成分を作成 %%分块对角矩阵的生成 dd = eye(Nx); %Nx阶单位阵 ca=Ax/dx^2 - 2*dd/dy^2; %y向差分使主对角元还要再减,减的同时考虑网格长dx,dy,构造“主块”,用ca表示 sca=sparse(ca); %将此Nx阶三对角阵以稀疏阵形式存储为sca...
Row of Toeplitz matrix, specified as a scalar or vector. If the first elements ofcandrdiffer, thentoeplitzuses the column element for the diagonal. Data Types:single|double|int8|int16|int32|int64|uint8|uint16|uint32|uint64 Complex Number Support:Yes ...
The matrix A has very small entries along the main diagonal. However, A is not singular, because it is a multiple of the identity matrix. Calculate the determinant of A. Get d = det(A) d = 1.0000e-40 The determinant is extremely small. A tolerance test of the form abs(det(A)...