List questions from inverse

Published on 26 Mar 2026 - 12:35

72

Views

Why doesn't $AA^-A=A \Rightarrow A^-AA^-=A^-$?

Published on 26 Feb 2019 - 16:43

36

Views

How to find the inverse or a tight bound on a series

Published on 27 Mar 2026 - 0:58

239

Views

First-year matrix problem: How do you show that a sum of an identity matrix and another matrix is equal to the sum's inverse?

Published on 28 Feb 2019 - 0:24

4.8k

Views

Finding $A^{-3}$ using Cayley Hamilton Theorem

Published on 25 Mar 2026 - 6:09

7.3k

Views

What is a big condition number for a matrix?

Published on 25 Mar 2026 - 3:34

120

Views

Inverse of $v \cdot v^\top$

Published on 04 Mar 2019 - 22:36

62

Views

Solve for the inverse of $\mathbf I - \tan(\frac{\phi}{2}) \mathbf {\hat \omega}$

Published on 27 Mar 2026 - 0:36

2.7k

Views

Invertibility of a block matrix

Published on 27 Mar 2026 - 4:00

135

Views

Movement of $1/z$ in complex plane

Published on 05 Mar 2019 - 18:04

220

Views

Finding set of solutions to $AX=0$ for triangular matrix $A$.

Published on 05 Mar 2019 - 20:21

81

Views

Inverse of a matrix which is difference of a singular matrix with a small diagonal matrix?

Published on 25 Mar 2026 - 11:13

268

Views

How to show that $2$ is invertible in a ring with odd cardinality?

Published on 22 Mar 2026 - 21:48

85

Views

Solution to a modified linear system using two methods

Published on 25 Mar 2026 - 3:34

1k

Views

Is there such a thing in math the inverse of a sequence?

Published on 08 Mar 2019 - 1:40

List Question

Inverse for a sum of two matrices

Why doesn't $AA^-A=A \Rightarrow A^-AA^-=A^-$?

How to find the inverse or a tight bound on a series

First-year matrix problem: How do you show that a sum of an identity matrix and another matrix is equal to the sum's inverse?

Finding $A^{-3}$ using Cayley Hamilton Theorem

What is a big condition number for a matrix?

Inverse of $v \cdot v^\top$

Solve for the inverse of $\mathbf I - \tan(\frac{\phi}{2}) \mathbf {\hat \omega}$

Invertibility of a block matrix

Movement of $1/z$ in complex plane

Finding set of solutions to $AX=0$ for triangular matrix $A$.

Inverse of a matrix which is difference of a singular matrix with a small diagonal matrix?

How to show that $2$ is invertible in a ring with odd cardinality?

Solution to a modified linear system using two methods

Is there such a thing in math the inverse of a sequence?

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