Linear Algebra and Its Applications · Problem 1.2.2

Matrices and Gaussian Elimination — Gilbert Strang

Mathematics · geometry-of-linear-equations

Problem

Solve to find a combination of the columns that equals

b

\textbf{Triangular system} \quad \begin{aligned} u - v - w &= b_1 \\ v + w &= b_2 \\ w &= b_3. \end{aligned}