 = 'L' or INIT = 'B', IWORK(3)
          specifies how many locations of DWORK contain reciprocal
          condition number estimates (see below); otherwise,
          IWORK(3) = 0.

  DWORK   DOUBLE PRECISION array dimesion (LDWORK)
          On entry, if desired, and if INIT = 'S' or 'B', the
          entries DWORK(1:4) are set to initialize the random
          numbers generator for the nonlinear part parameters (see
          the description of the argument XINIT of SLICOT Library
          routine MD