Example 2 (from Program LA_SYSV_EXAMPLE)

Matrix $A$ as in Example 1 and the first column of matrix $B$ in Example 1.
Arrays ${\bf A}$ and ${\bf B(:,1)}$ on entry:

$$\begin{array}{c} {\bf A} \\ \begin{array}{\vert rrrrr\ver... ... 14 \\ 19 \\ 21 \\ 23 \\ 32 \\ \hline \end{array} \end{array}$$

Elements marked $\ast$ are not used by the routine.

The call:
CALL LA_SYSV( A, B(:,1), 'L', IPIV, INFO )

${\bf A}$, ${\bf B(:,1)}$, ${\bf IPIV}$ and ${\bf INFO}$ on exit:

$$\begin{array}{c} {\bf A} \\ \begin{array}{\vert lllll\ver... ...97 \times 10^{-1} &-4.01098 \\ \hline \end{array} \end{array}$$

$$\begin{array}{c} {\bf B(:,1)} \\ \begin{array}{\vert r\ve... ...} \hspace{0.50 cm} \begin{array}{c} {\bf INFO} = 0 \end{array}$$

The solution of the system $A\,x = b$ is:

$$x = \left( \begin{array}{r} 1.00000 \\ 1.00000 \\ 1.00000 \\ 1.00000 \\ 1.00000 \end{array} \right).$$