Matrix Inverse

The inverse undoes a transformation.

\[\M{M}\cdot \M{M}^{-1}=\M{I}\] \[\M{M}^{-1}\cdot \M{M}=\M{I}\]

Inverse matrices compose on the left.

\[(\M{A}\cdot \M{B})^{-1}=\M{B}^{-1}\cdot \M{A}^{-1}\]