This is something that's bothered me for a very long time....(adsbygoogle = window.adsbygoogle || []).push({});

Say you're doing Gaussian elimination on some matrix.

Now suppose during the process, some row gets zeroed out, say row j. Now it makes perfect sense for me to say that row j was a linear combination of the previous rows.

But here's what I don't get. Suppose some row is a linear combination of rows above it. How does THAT imply thatat some pointduring the elimination process THAT particular row will be zeroed out???

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# Rows that get zeroed out during elimination

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