Examples of UpperTriangPackMatrix

no.uib.cipr.matrix.UpperTriangPackMatrix
Upper triangular packed matrix. In contrast with {@link no.uib.cipr.matrix.LowerTriangDenseMatrix LowerTriangDenseMatrix}, this matrix exploits the sparsity by only storing about half the matrix. As such, the triangular matrix

a₁₁ a₁₂ a₁₃ a₁₄

a₂₂ a₂₃ a₂₄

a₃₃ a₃₄

a₄₄

is packed as follows:

a₁₁ a₁₂ a₂₂ a₁₃ a₂₃ a₃₃ a₁₄ a₂₄ a₃₄ a₄₄

Examples of no.uib.cipr.matrix.UpperTriangPackMatrix

    }


    @Override
    protected void createPrimary() throws Exception {
        int n = Utilities.getInt(1, max);
        A = new UpperTriangPackMatrix(n);
        Ad = Utilities.upperPopulate(A);


        // This ensures non-singularity
        Utilities.addDiagonal(A, Ad, 1);
    }

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a₁₁	a₁₂	a₁₃	a₁₄
	a₂₂	a₂₃	a₂₄
		a₃₃	a₃₄
			a₄₄