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HATFLDG.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME HATFLDG
* Problem :
* *********
* A test problem from the OPTIMA user manual.
* Source:
* "The OPTIMA user manual (issue No.8, p. 49)",
* Numerical Optimization Centre, Hatfield Polytechnic (UK), 1989.
* SIF input: Ph. Toint, May 1990.
* classification NOR2-AY-25-25
* Number of variables
IE N 25
* Constants
IE 1 1
IE 2 2
IE 13 13
* Computed parameters
IA N-1 N -1
VARIABLES
DO I 1 N
X X(I)
ND
GROUPS
DO I 1 N
XE G(I) X(I) 1.0 X(13) -1.0
ND
CONSTANTS
X HATFLDG 'DEFAULT' -1.0
BOUNDS
FR HATFLDG 'DEFAULT'
START POINT
V HATFLDG 'DEFAULT' 1.0
ELEMENT TYPE
EV 2PR X Y
EV 2PRI X Y
EV 2PRI Z
IV 2PRI U V
ELEMENT USES
T A1 2PR
V A1 X X1
V A1 Y X2
DO I 2 N-1
IA I-1 I -1
IA I+1 I 1
XT A(I) 2PRI
ZV A(I) X X(I)
ZV A(I) Y X(I-1)
ZV A(I) Z X(I+1)
ND
XT A(N) 2PR
ZV A(N) X X(N-1)
ZV A(N) Y X(N)
GROUP USES
XE G(1) A(1) -1.0
DO I 2 N
XE G(I) A(I)
ND
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS HATFLDG
INDIVIDUALS
T 2PR
F X * Y
G X Y
G Y X
H X Y 1.0
T 2PRI
R U X 1.0
R V Y 1.0 Z -1.0
F U * V
G U V
G V U
H U V 1.0
ENDATA