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Deleting Some Specific Entries from a vector
I have vectors xa and yb. I want to write the entries of yb to xa which are not the ones -1,0,1,0.6,-0.6,0.8,-0.8 I apply this ...
4 years 前 | 1 个回答 | 0
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some other matrices matrix
N=5; C=sparse(zeros(N-1)); C([1 end])=C([1 end])+1; B=speye(N-1); B([1 end])=B([1 end])-1/2; I have B and C matrices. I can...
4 years 前 | 1 个回答 | 0
1
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Eigenvalue for a big matrix
I have a matrix 24990001 x 24990001 and I want to calculate the smallest 10 eigenvalues of this matrix. But I get out of memory ...
4 years 前 | 1 个回答 | 0
1
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Tridiagonal Matrix with subdiagonal and main diagonal is also matrix
I have two matrices A and B. I want A to be main diagonal and B to be my subdiagonals. How do I create such a matrix? By the way...
4 years 前 | 2 个回答 | 0
