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## Arguments

A
(input/output) REAL or COMPLEX array, shape with and .
On entry, the matrix .
On exit, A contains the triangular matrix , or part of , as follows:
If , then is stored in .
If , then the matrix

is stored in .

B
(input/output) REAL or COMPLEX array, shape with and .
On entry, the matrix .
On exit, if , then is stored in .

ALPHA
(output) REAL array, shape with
The real scalars , .

BETA
(output) REAL array, shape with (BETA) .
The real scalars , .

Note: The generalized singular values of the pair are

If , then ALPHA BETA .

K, L
Optional (output) INTEGER.
The dimension parameters and .

U
Optional (output) REAL or COMPLEX square array, shape with (U,1) .
The matrix .

V
Optional (output) REAL or COMPLEX square array, shape with (V,1) .
The matrix .

Q
Optional (output) REAL or COMPLEX square array, shape with (Q,1) .
The matrix .

IWORK
Optional (output) INTEGER array, shape with .
IWORK contains sorting information. More precisely, the loop

for

swap ALPHA and ALPHA

end

will sort ALPHA so that ALPHA ALPHA ALPHA.

INFO
Optional (output) INTEGER.

If INFO is not present and an error occurs, then the program is terminated with an error message.
References: [1] and [17,9,20].

Next: Examples Up: Generalized Singular Value Problems Previous: Purpose   Contents   Index
Susan Blackford 2001-08-19