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!----------------------------------------------------------------------
!----------------------------------------------------------------------
! ops : Optimization of periodic solutions
!----------------------------------------------------------------------
!----------------------------------------------------------------------
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,*)
DOUBLE PRECISION x,y,z,p1,p2,p3,p4
INTEGER I,J
x=U(1)
y=U(2)
z=U(3)
p1=PAR(1)
p2=PAR(2)
p3=PAR(3)
p4=PAR(4)
F(1)=( -p4*(x**3/3-x) + (z-x)/p2 - y ) / p1
F(2)=x-p3
F(3)=-(z-x)/p2
IF(IJAC.EQ.0)RETURN
DFDU(1,1)=( -p4*(x**2-1) - 1/p2 ) /p1
DFDU(1,2)=-1/p1
DFDU(1,3)=1/(p2*p1)
DFDU(2,1)=1
DFDU(2,2)=0
DFDU(2,3)=0
DFDU(3,1)=1/p2
DFDU(3,2)=0
DFDU(3,3)=-1/p2
IF(IJAC.EQ.1)RETURN
! *Parameter derivatives
DO I=1,3
DO J=1,9
DFDP(I,J)=0.d0
ENDDO
ENDDO
DFDP(1,1)=-( -p4*(x**3/3-x) + (z-x)/p2 - y )/p1**2
DFDP(1,2)=-(z-x)/(p2**2*p1)
DFDP(1,3)=0
DFDP(1,4)=-(x**3/3-x)/p1
DFDP(2,1)=0
DFDP(2,2)=0
DFDP(2,3)=-1
DFDP(2,4)=0
DFDP(3,1)=0
DFDP(3,2)=(z-x)/p2**2
DFDP(3,3)=0
DFDP(3,4)=0
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
DOUBLE PRECISION p1,p2,p3,p4
p1=0.5
p2=4
p3=0.9
p4=2.
U(1)=p3
U(2)=-p4*(p3**3/3-p3)
U(3)=p3
PAR(1)=p1
PAR(2)=p2
PAR(3)=p3
PAR(4)=p4
END SUBROUTINE STPNT
SUBROUTINE FOPT(NDIM,U,ICP,PAR,IJAC,FS,DFDU,DFDP)
! ---------- ----
IMPLICIT NONE
INTEGER, INTENT(IN) :: NDIM, ICP(*), IJAC
DOUBLE PRECISION, INTENT(IN) :: U(NDIM), PAR(*)
DOUBLE PRECISION, INTENT(OUT) :: FS
DOUBLE PRECISION, INTENT(INOUT) :: DFDU(NDIM),DFDP(*)
INTEGER I
FS=PAR(3)
IF(IJAC.EQ.0)RETURN
DO I=1,NDIM
DFDU(I)=0.d0
ENDDO
IF(IJAC.EQ.1)RETURN
! *Parameter derivatives
DO I=1,9
DFDP(I)=0.d0
ENDDO
DFDP(3)=1.d0
END SUBROUTINE FOPT
SUBROUTINE BCND
END SUBROUTINE BCND
SUBROUTINE ICND
END SUBROUTINE ICND
SUBROUTINE PVLS
END SUBROUTINE PVLS
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