the second dimension of the array b
must be at least
must contain the band matrix in packed form, in the leading
part of the array. The matrix is packed column by column, with the leading diagonal of the matrix in row
, the first superdiagonal starting at position
, the first subdiagonal starting at position
, and so on. Elements of b
that are not needed to store the band matrix, for instance the leading
triangle, are not referenced and need not be assigned.
contains the band matrix stored in packed form. Elements of b
that are not needed to store the band matrix are not referenced.