I am familiar with the elementary row operations but I've never heard an step worded in this way.
Thanks!
2025-01-13 07:43:47.1736754227
In Gauss-Jordan elimination, what does it mean to 'restore' a row?
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I've never heard that word in that context before, but based on the picture, it seems to mean something like 'normalize'. After computing
row 1 - row 2, the person multiplied row 2 by $-9/2$ in order for the entry on the main diagonal to be a 1, 'restoring' it to a form easier to work with.