nts in the off-
          diagonal blocks. Consequently, the formulas (1) and (2)
          do not hold for the returned A and Q (if COMPQ &lt;&gt; 'N')
          in this case.

  LDA1    INTEGER
          The first leading dimension of the array A.
          LDA1 &gt;= MAX(1,N).

  LDA2    INTEGER
          The second leading dimension of the array A.
          LDA2 &gt;= MAX(1,N).

  Q       (input/output)  DOUBLE PRECISION array, dimension
                          (LDQ1,LDQ2,K)
          On entry, if CO