A negative matrix is a real or integer matrix 
for which each matrix element is a negative
number, i.e., 
for all 
,
.
Negative matrices are therefore a subset of nonpositive matrices.
Negative Matrix
See also
Identity Matrix, Integer Matrix, Matrix, Negative, Nonnegative Matrix, Nonpositive Matrix, Positive Matrix, Real Matrix, Unit Matrix, Zero MatrixExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Negative Matrix." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/NegativeMatrix.html