How does the notation of a block matrix work? I'm sorry if my question is not specific, but I would really appreciate an answer with an example.
2026-02-22 20:36:49.1771792609
Notation of Block Matrix
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There's no magic to it. Let's say that A, B, C, and D are all matrices. Then \begin{bmatrix} A & B \\ C & D \end{bmatrix} is a block matrix (where here we are assuming that the matrices $A$, $B$, $C$, and $D$ have the right dimensions so that the block matrix works out.
Does that answer your question?