Zero Matrix Definition
A zero matrix is an m x n matrix where all of its elements are equal to zero and denoted by 0. Zero matrices are sometimes also referred to as null matrices.
A zero matrix is the additive identity of the additive group of m x n matrices. The matrix exponential of 0 is given by the identity matrix.
“Zero Matrix.” From Wolfram MathWorld, mathworld.wolfram.com/ZeroMatrix.html.