Elementary row operations are: interchange two rows; multiply one row by a nonzero scalar; add a scalar multiple of one row to another. They are reversible and preserve the solution set when applied to an augmented matrix. Multiplying a row by zero is excluded because it loses information. Each operation is left multiplication by an elementary matrix.
Parents
Like how this is organised?
Build your own knowledge tree on knowen.md: notes, decisions and tasks in one connected markdown graph, shared with your team and your AI agents.