Chapter 2.6, Problem 2CP

Use a MATLAB version of conjugate gradient to solve the following problems:

a. $\left[\begin{array}{ccc}1& -1& 0\\ -1& 2& 1\\ 0& 1& 2\end{array}\right]\left[\begin{array}{c}u\\ v\\ w\end{array}\right]=\left[\begin{array}{c}0\\ 2\\ 3\end{array}\right]$

b. $\left[\begin{array}{ccc}1& -1& 0\\ -1& 2& 1\\ 0& 1& 5\end{array}\right]\left[\begin{array}{c}u\\ v\\ w\end{array}\right]=\left[\begin{array}{c}3\\ -3\\ 4\end{array}\right]$