MHB Matrix Operations: Solving for A+B, AB, BA, AC, and CA

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The discussion focuses on matrix operations involving the addition and multiplication of matrices A and B, specifically addressing the calculations for A+B, AB, BA, AC, and CA. There is a concern about potential typos in the calculations due to their tedious nature. A question is raised regarding the feasibility of performing these operations when matrices A and B have unequal row sizes. The use of macros in LaTeX for simplifying matrix representation is mentioned. Overall, the thread highlights the complexities and considerations in matrix operations.
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ok I think I did these are ok but knowing how tedious it is might be some typos
also does this work if you have different unequal rows for example if A had 3 rows and B had 2 rows

the pic is just a snip from my overleaf doc. I used macros to avoid long latex code in the bmatrix

mocho mahalo
 
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