C-----------------------------------------------------------------------
C IMSL Name:  BID/DBID (Single/Double precision version)
C
C Purpose:    Evaluate the derivative of the Airy function of the
C             second kind.
C
C Usage:      BID(X)
C
C Example 1:
C                                  Declare variables
      INTEGER    NOUT
      REAL       BID, VALUE, X
      EXTERNAL   BID, UMACH
C                                  Compute
      X     = -4.9
      VALUE = BID(X)
C                                  Print the results
      CALL UMACH (2, NOUT)
      WRITE (NOUT,99999) X, VALUE
99999 FORMAT (' BID(', F6.3, ') = ', F6.3)
      END
C  BID(-4.900) =  0.827