Linear Algebra 2.4 Elementary Matrices

[@res0nanc320]

The nice thing about these elementary matrices is that they are easy to invert. Each one encodes a particular row operation, so their inverses just reverse that row operation. No need to use a matrix calculator! For matrices subtracting a multiple of one row from another the inverse just adds it back. Just change the sign of the off diagonal entry.

[@davidmurphy563]

What is the textbook you're working from? Would be nice to follow along. Apologies if you already stated that elsewhere.

[@SawFinMath]

Sorry! I thought I had it in the video description. It is Elementary Linear Algebra 8e by Ron Larson.

[@davidmurphy563]

@@SawFinMath Thank you!