On entry: the order argument specifies the two-dimensional storage scheme being used, i.e., row-major ordering or column-major ordering. C language defined storage is specified by . See Section 3.1.3 in the Introduction to the NAG Library CL Interface for a more detailed explanation of the use of this argument.
2: – Nag_NormTypeInput
On entry: specifies the value to be returned.
The Frobenius (or Euclidean) norm.
The value (not a norm).
, , or .
3: – IntegerInput
On entry: , the number of rows of the matrix .
4: – IntegerInput
On entry: , the number of columns of the matrix .
5: – IntegerInput
On entry: , the number of subdiagonals within the band of .
6: – IntegerInput
On entry: , the number of superdiagonals within the band of .
7: – const doubleInput
Note: the dimension, dim, of the array ab
must be at least
On entry: the band matrix .
This is stored as a notional two-dimensional array with row elements or column elements stored contiguously. The storage of elements , for row and column , depends on the order argument as follows:
if , is stored as ;
if , is stored as .
8: – IntegerInput
On entry: the stride separating row or column elements (depending on the value of order) of the matrix in the array