Question

Spectral norm of psuedoinverse of a matrix

score 99 · Answer 1 · 2020-01-26 20:41:11

99

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Spectral norm of psuedoinverse of a matrix

Published on 26 Jan 2020 - 20:41

score 111 · Answer 2 · 2026-03-29 18:14:54

111

Views

Inverse of $f(x)=x+\text{log}(x)$

Published on 29 Mar 2026 - 18:14

score 729 · Answer 3 · 2026-03-27 08:41:40

729

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Non-diagonal Elements of Positive Definite Matrix

Published on 27 Mar 2026 - 8:41

score 23 · Answer 4 · 2026-03-31 09:06:04

23

Views

permuted inverse matrix multiplication

Published on 31 Mar 2026 - 9:06

score 77 · Answer 5 · 2026-03-29 04:47:25

77

Views

$4\times4$ "Cofactor Transpose Matrix" calculation gone wrong!: Appendix A$.1$, $\mathit{\text{Shankar, R; Principles of Quantum Mechanics}}$

Published on 29 Mar 2026 - 4:47

score 104 · Answer 6 · 2020-01-29 08:39:25

104

Views

Determinant and inverse of $M + M^T$ for a specific $M$.

Published on 29 Jan 2020 - 8:39

score 120 · Answer 7 · 2020-01-30 18:45:15

120

Views

Invertible $ABA=B^2$

Published on 30 Jan 2020 - 18:45

score 104 · Answer 8 · 2020-01-31 23:02:12

104

Views

If $A^2 = - I$, is $A$ invertible?

Published on 31 Jan 2020 - 23:02

score 102 · Answer 9 · 2020-02-01 15:17:04

102

Views

Watched Khan Academy, now I’m confused by division (noncommutative) being the inverse of multiplication (commutative)

Published on 01 Feb 2020 - 15:17

score 17.3k · Answer 10 · 2020-02-02 06:55:11

17.3k

Views

What is the difference between inverse and reciprocal?

Published on 02 Feb 2020 - 6:55

score 103 · Answer 11 · 2020-02-04 15:01:22

103

Views

If $B$ is invertible and $A+B=AB$, prove that $A$ is also invertible

Published on 04 Feb 2020 - 15:01

score 18 · Answer 12 · 2026-03-21 23:52:48

18

Views

Symmetric, real, invertible matrix: How to prove component multiplication equals Kronecker?

Published on 21 Mar 2026 - 23:52

score 76 · Answer 13 · 2020-02-05 08:53:39

76

Views

Inverse matrix elements: is it possible to find some pattern?

Published on 05 Feb 2020 - 8:53

score 17 · Answer 14 · 2026-03-16 02:23:20

17

Views

Is there any (hopefully) simple approximation for the Poisson distribution cumulative density function?

Published on 16 Mar 2026 - 2:23

score 166 · Answer 15 · 2026-03-31 15:14:33

166

Views

Does the inverse of a (monotonic) polynomial approxmiation of (monotonic) function $f(x)$ approximate the inverse of $f(x)$?

Published on 31 Mar 2026 - 15:14

List Question

Spectral norm of psuedoinverse of a matrix

Inverse of $f(x)=x+\text{log}(x)$

Non-diagonal Elements of Positive Definite Matrix

permuted inverse matrix multiplication

$4\times4$ "Cofactor Transpose Matrix" calculation gone wrong!: Appendix A$.1$, $\mathit{\text{Shankar, R; Principles of Quantum Mechanics}}$

Determinant and inverse of $M + M^T$ for a specific $M$.

Invertible $ABA=B^2$

If $A^2 = - I$, is $A$ invertible?

Watched Khan Academy, now I’m confused by division (noncommutative) being the inverse of multiplication (commutative)

What is the difference between inverse and reciprocal?

If $B$ is invertible and $A+B=AB$, prove that $A$ is also invertible

Symmetric, real, invertible matrix: How to prove component multiplication equals Kronecker?

Inverse matrix elements: is it possible to find some pattern?

Is there any (hopefully) simple approximation for the Poisson distribution cumulative density function?

Does the inverse of a (monotonic) polynomial approxmiation of (monotonic) function $f(x)$ approximate the inverse of $f(x)$?

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