Question

Find first element of inverse matrix knowing Cholesky decomposition.

score 224 · Answer 1 · 2026-03-18 01:26:07

224

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Find first element of inverse matrix knowing Cholesky decomposition.

Published on 18 Mar 2026 - 1:26

score 28 · Answer 2 · 2026-03-24 23:42:02

28

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Generic "wavelet lifting" style matrix factorizations?

Published on 24 Mar 2026 - 23:42

score 123 · Answer 3 · 2026-03-18 12:28:03

123

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How to calculate $R=M(M^tM)^{-1/2}$ when one of the eigenvalues of $M^tM$ is $0$?

Published on 18 Mar 2026 - 12:28

score 3.4k · Answer 4 · 2026-03-25 20:10:55

3.4k

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How to extract rotation matrix and scale vector from a 3D affine transformation?

Published on 25 Mar 2026 - 20:10

score 37 · Answer 5 · 2018-11-08 18:16:43

37

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Factorization of a complex-valued positive matrix into product of Hankel matrices.

Published on 08 Nov 2018 - 18:16

score 380 · Answer 6 · 2026-03-25 03:02:19

380

Views

Updating Cholesky decomposition when deleting one row and one and column.

Published on 25 Mar 2026 - 3:02

score 109 · Answer 7 · 2018-11-09 14:47:59

109

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For any unitary matrix $U$ and integer $k>0$, there exists a polynomial $p(t)$, such that the matrix $B=p(U)$ satisfies the equation $B^k=U.$

Published on 09 Nov 2018 - 14:47

score 470 · Answer 8 · 2026-03-26 04:28:53

470

Views

Why is the eigenvector matrix $S$ invertible?

Published on 26 Mar 2026 - 4:28

score 225 · Answer 9 · 2018-11-10 18:03:06

225

Views

Calculate matrix in equation with constraints on values

Published on 10 Nov 2018 - 18:03

score 82 · Answer 10 · 2018-11-11 17:19:29

82

Views

Rectangular matrices

Published on 11 Nov 2018 - 17:19

score 523 · Answer 11 · 2018-11-11 21:40:09

523

Views

Find the inverse of a matrix by using the inverse of another one, which only differs in one row/column

Published on 11 Nov 2018 - 21:40

score 33 · Answer 12 · 2018-11-12 00:05:19

33

Views

Change of largest eigenvalue by change of single element of nonnegative square matrix

Published on 12 Nov 2018 - 0:05

score 49 · Answer 13 · 2018-11-12 18:24:37

49

Views

Cholesky Decomposition and Equal Diagonals

Published on 12 Nov 2018 - 18:24

score 208 · Answer 14 · 2026-03-26 01:07:53

208

Views

Singular vectors of a symmetric block secondary diagonal matrix

Published on 26 Mar 2026 - 1:07

score 303 · Answer 15 · 2018-11-13 14:50:32

303

Views

Cholesky and $P^T LDL^T P$ decompositions not corresponding

Published on 13 Nov 2018 - 14:50

List Question

Find first element of inverse matrix knowing Cholesky decomposition.

Generic "wavelet lifting" style matrix factorizations?

How to calculate $R=M(M^tM)^{-1/2}$ when one of the eigenvalues of $M^tM$ is $0$?

How to extract rotation matrix and scale vector from a 3D affine transformation?

Factorization of a complex-valued positive matrix into product of Hankel matrices.

Updating Cholesky decomposition when deleting one row and one and column.

For any unitary matrix $U$ and integer $k>0$, there exists a polynomial $p(t)$, such that the matrix $B=p(U)$ satisfies the equation $B^k=U.$

Why is the eigenvector matrix $S$ invertible?

Calculate matrix in equation with constraints on values

Rectangular matrices

Find the inverse of a matrix by using the inverse of another one, which only differs in one row/column

Change of largest eigenvalue by change of single element of nonnegative square matrix

Cholesky Decomposition and Equal Diagonals

Singular vectors of a symmetric block secondary diagonal matrix

Cholesky and $P^T LDL^T P$ decompositions not corresponding

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