On entry: the
triangular matrix
, packed by rows or columns.
The storage of elements
depends on the
order and
uplo arguments as follows:
- if and ,
- is stored in , for ;
- if and ,
- is stored in , for ;
- if and ,
- is stored in , for ;
- if and ,
- is stored in , for .
If , the diagonal elements of are assumed to be , and are not referenced; the same storage scheme is used whether or .