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

# Strictly Lower Triangular Matrix

## See also

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

## Cite this as:

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