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+ // EXAMPLE (PG 529)
+
+ // Consider the coefficient matrix for spline interpolation
+
+
+A = [2 1 0 0;1 4 1 0;0 1 4 1;0 0 1 2]
+[l,u] = lu(A); // LU Decomposition
+U = l' // Lower Triangular matrix
+L = u' // Upper triangular matrix
+