- 224

- 0

## Main Question or Discussion Point

Does anyone know a formula for the inverse of a sum of two upper triangular matrices?

- Thread starter Physics_wiz
- Start date

- 224

- 0

Does anyone know a formula for the inverse of a sum of two upper triangular matrices?

HallsofIvy

Science Advisor

Homework Helper

- 41,734

- 893

Have you looked at the inverse of

[tex]\left(\begin{array}{cc}a & b \\ 0 & c\end{array}\right)+ \left(\begin{array}{cc}x & y \\ 0 & z\end{array}\right)[/tex]?

- Last Post

- Replies
- 6

- Views
- 13K

- Last Post

- Replies
- 4

- Views
- 2K

- Last Post

- Replies
- 2

- Views
- 2K

- Last Post

- Replies
- 3

- Views
- 2K

- Last Post

- Replies
- 9

- Views
- 9K

- Last Post

- Replies
- 7

- Views
- 3K

- Last Post

- Replies
- 6

- Views
- 14K

- Last Post

- Replies
- 4

- Views
- 3K