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HS6.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME HS6
* Problem :
* *********
* Source: problem 6 in
* W. Hock and K. Schittkowski,
* "Test examples for nonlinear programming codes",
* Lectures Notes in Economics and Mathematical Systems 187, Springer
* Verlag, Heidelberg, 1981.
* SIF input: A.R. Conn March 1990
* classification QQR2-AN-2-1
VARIABLES
X1
X2
GROUPS
N G1 X1 -1.0
E G2 X2 1.0
E G2 'SCALE' 0.1
CONSTANTS
HS6 G1 -1.0
BOUNDS
FR HS6 'DEFAULT'
START POINT
HS6 X1 -1.2
HS6 X2 1.0
ELEMENT TYPE
EV SQ V1
ELEMENT USES
T E1 SQ
V E1 V1 X1
GROUP TYPE
GV L2 GVAR
GROUP USES
T G1 L2
E G2 E1
OBJECT BOUND
* Problem is trivially bounded below by 0
LO HS6 0.0
* Solution
*LO SOLTN 0.0
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS HS6
INDIVIDUALS
T SQ
F -V1 * V1
G V1 -2.0 * V1
H V1 V1 -2.0
ENDATA
*********************
* SET UP THE GROUPS *
* ROUTINE *
*********************
GROUPS HS6
INDIVIDUALS
T L2
F GVAR*GVAR
G 2.0*GVAR
H 2.0
ENDATA