

  LDA     INTEGER
          The leading dimension of array A.  LDA &gt;= MAX(1,M).

  E       (input/output) DOUBLE PRECISION array, dimension (LDE,N)
          On entry, the leading M-by-N part of this array must
          contain the matrix in column echelon form to be
          transformed equivalent to matrix A.
          On exit, the leading M-by-N part of this array contains
          the matrix that has been transformed equivalent to matrix
          A.

  LDE     INTEGER
          The leading dime