f Q. Otherwise, C is used as workspace.

  LDC     INTEGER
          The leading dimension of array C.
          LDC &gt;= P, where P is the number of rows of the matrix C,
          i.e., the output value of IPAR(3). (For all examples,
          P &lt;= N, where N equals the output value of the argument
          IPAR(1), i.e., LDC &gt;= LDA is always safe.)

  G       (output) DOUBLE PRECISION array, dimension (NG)
          If (BPAR(2) = .TRUE.)  then NG = LDG*N.
          If (BPAR(2) = .FALSE.) then NG 