Array Arguments

Each array argument is an assumed-shape array. Some array arguments may have either rank 1 or rank 2. An example from LA_GESV:

B

(input/output) REAL or COMPLEX array, shape (:,:) with $size({\bf B},1)$ = $size({\bf A},1)$ or shape $(:)$ with $size({\bf B})=size({\bf A},1)$.
On entry, the matrix $B$.
On exit, the solution matrix $X$.