A strictly upper triangular matrix is an upper triangular matrix having 0s along the diagonal as well as the lower portion, i.e., a matrix such that for . Written explicitly,

# Strictly Upper Triangular Matrix

## See also

Lower Triangular Matrix, Strictly Lower Triangular Matrix, Triangular Matrix## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Strictly Upper Triangular
Matrix." From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/StrictlyUpperTriangularMatrix.html