Linear Algebra and Its Applications · Problem 1.3.13

Matrices and Gaussian Elimination — Gilbert Strang

Mathematics · gaussian-elimination

Problem

Which number

b

leads later to a row exchange? Which

b

leads to a missing pivot? In that singular case find a nonzero solution

x

y

z

\begin{aligned} x + by &= 0 \\ x - 2y - z &= 0 \\ y + z &= 0. \end{aligned}