<P> A square matrix that is not invertible is called singular or degenerate . A square matrix is singular if and only if its determinant is 0 . Singular matrices are rare in the sense that a square matrix randomly selected from a continuous uniform distribution on its entries will almost never be singular . </P>
<P> A square matrix that is not invertible is called singular or degenerate . A square matrix is singular if and only if its determinant is 0 . Singular matrices are rare in the sense that a square matrix randomly selected from a continuous uniform distribution on its entries will almost never be singular . </P>
when does the inverse of a square matrix not exist
when does the inverse of a square matrix not exist
singular or degenerate
singular or degenerate