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HATFLDC.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME HATFLDC
* Problem :
* *********
* A test problem from the OPTIMA user manual.
* Source:
* "The OPTIMA user manual (issue No.8, p. 26)",
* Numerical Optimization Centre, Hatfield Polytechnic (UK), 1989.
* SIF input: Ph. Toint, May 1990.
* classification SBR2-AN-25-0
* Number of variables
IE N 25
* Computed parameters and constants
IA N-1 N -1
IE 1 1
IE 2 2
VARIABLES
DO I 1 N
X X(I)
ND
GROUPS
XN G(1) X(1) 1.0
DO I 2 N-1
IA I+1 I 1
XN G(I) X(I+1) 1.0
ND
XN G(N) X(N) 1.0
CONSTANTS
X HATFLDC G(1) 1.0
X HATFLDC G(N) 1.0
BOUNDS
XU HATFLDC 'DEFAULT' 10.0
XR HATFLDC X(N)
START POINT
XV HATFLDC 'DEFAULT' 0.9
ELEMENT TYPE
EV SQ X
ELEMENT USES
XT 'DEFAULT' SQ
DO I 2 N-1
ZV E(I) X X(I)
ND
GROUP TYPE
GV L2 GVAR
GROUP USES
XT 'DEFAULT' L2
DO I 2 N-1
XE G(I) E(I) -1.0
ND
OBJECT BOUND
LO HATFLDC 0.0
* Solution
*LO SOLTN 0.0
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS HATFLDC
INDIVIDUALS
T SQ
F X * X
G X X + X
H X X 2.0
ENDATA
*********************
* SET UP THE GROUPS *
* ROUTINE *
*********************
GROUPS HATFLDC
INDIVIDUALS
T L2
F GVAR * GVAR
G GVAR + GVAR
H 2.0
ENDATA