**Minor** ([edit](http://github.com/nicebyte/wiki/edit/master/Wiki/Minor.md)) # Definition Given an $n \times n$ matrix $\boldsymbol{M}$, a $k$ _-th minor_ of $\boldsymbol{M}$ is the determinant of a $(n-k) \times (n-k)$ matrix obtained by deleting $k$ rows and $k$ columns from $\boldsymbol{M}$. For example, a _first minor_ is the determinant of a matrix obtained by deleting one row and one column from the original matrix. Categories: Mathematics, LinearAlgebra