Initializes an upper triangular matrix.
The number of rows or columns
The elements on and above the main diagonal
const result = Chalkboard.matr.upperTriangular(3, 1, 2, 3, 4, 5, 6); // Returns an upper-triangular matrix Copy
const result = Chalkboard.matr.upperTriangular(3, 1, 2, 3, 4, 5, 6); // Returns an upper-triangular matrix
Initializes an upper triangular matrix.