Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [exact-duplicates]

The tag has no usage guidance.

6
votes
1answer
50 views

Canonical question on updating matrix inverses and factorizations

The question "given the inverse/a certain factorization of $A$, can I compute cheaply one of $A+B$?" is one that gets asked a lot here, in slightly different forms: for instance when $A$ is symmetric, ...