Example 1

The packed storage scheme is illustrated below for the matrix

$$A = \left( \begin{array}{rrrr} a_{11} & a_{12} & a_{13} & a... ...{34} \\ a_{41} & a_{42} & a_{43} & a_{44} \end{array} \right)$$

where $a_{ij} = \mbox{conjg}(a_{ji}) \;\; \mbox{for} \;\; i,j = 1, \cdots, 4.$

If ${\bf UPLO} =$ 'U' then:

$$\begin{array}{c} {\bf AP} \;\; \mbox{on} \;\; \mbox{entry} ... ...} & a_{24} & a_{34} & a_{44} \\ \hline \end{array} \end{array}$$

If ${\bf UPLO} =$ 'L' then:

$$\begin{array}{c} {\bf AP} \;\; \mbox{on} \;\; \mbox{entry} ... ...} & a_{33} & a_{43} & a_{44} \\ \hline \end{array} \end{array}$$