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!----------------------------------------------------------------------
!----------------------------------------------------------------------
! ppp : A continuous dynamical system with period doubling
!----------------------------------------------------------------------
!----------------------------------------------------------------------
SUBROUTINE FUNC(NDIM,U,ICP,PAR,IJAC,F,DFDU,DFDP)
! ---------- ----
IMPLICIT NONE
INTEGER, INTENT(IN) :: NDIM, ICP(*), IJAC
DOUBLE PRECISION, INTENT(IN) :: U(NDIM), PAR(*)
DOUBLE PRECISION, INTENT(OUT) :: F(NDIM)
DOUBLE PRECISION, INTENT(INOUT) :: DFDU(NDIM,NDIM), DFDP(NDIM,*)
F(1)= U(1)*(1-U(1)) - PAR(4)*U(1)*U(2)
F(2)=-PAR(2)*U(2) + PAR(4)*U(1)*U(2) - PAR(5)*U(2)*U(3) &
- PAR(1)*(1-EXP(-PAR(6)*U(2)))
F(3)=-PAR(3)*U(3) + PAR(5)*U(2)*U(3)
END SUBROUTINE FUNC
SUBROUTINE STPNT(NDIM,U,PAR,T)
! ---------- -----
IMPLICIT NONE
INTEGER, INTENT(IN) :: NDIM
DOUBLE PRECISION, INTENT(INOUT) :: U(NDIM),PAR(*)
DOUBLE PRECISION, INTENT(IN) :: T
U(1)=1.0
U(2)=0.0
U(3)=0.0
PAR(1)=0.0
PAR(2)=0.25
PAR(3)=0.5
PAR(4)=3.0
PAR(5)=3.0
PAR(6)=5.0
END SUBROUTINE STPNT
SUBROUTINE BCND
END SUBROUTINE BCND
SUBROUTINE ICND
END SUBROUTINE ICND
SUBROUTINE FOPT
END SUBROUTINE FOPT
SUBROUTINE PVLS
END SUBROUTINE PVLS
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