Additive Inverse of a Matrix
The matrix obtained by changing the sign of every matrix
element.
The additive inverse of matrix A is written –A.
Note: The sum of a matrix and its
additive inverse is the zero matrix.
\[A = \left[ {\begin{array}{*{20}{c}}2&{  5}&4\\1&0&{  11}\end{array}} \right]\]
\[  A = \left[ {\begin{array}{*{20}{c}}{  2}&5&{  4}\\{  1}&0&{11}\end{array}} \right]\]
See
also
Matrix addition
