While studying full rank decomposition, I found the following:
I understand it until $C$. Where does $C$ comes from?
2026-04-03 19:41:06.1775245266
Full rank decomposition, where matrix come from?
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The rows of matrix $C$ are just a basis for rows of matrix $A$.
The rows of matrix $B$ are the combination coefficient such that $BC=A$.
Indeed the left multiplication $BC$ correspond to a row combination of the rows of $C$.