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HS4.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME HS4
* Problem :
* *********
* Source: problem 4 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 OBR2-AN-2-0
VARIABLES
X1
X2
GROUPS
N G1 X1 1.0
N G1 'SCALE' 3.0
N G2 X2 1.0
CONSTANTS
HS4 G1 -1.0
BOUNDS
LO HS4 X1 1.0
START POINT
HS4 X1 1.125
HS4 X2 0.125
ELEMENT TYPE
ELEMENT USES
GROUP TYPE
GV CUBE GVAR
GROUP USES
T G1 CUBE
OBJECT BOUND
LO HS4 2.66
* Solution
*LO SOLTN 2.66666
ENDATA
*********************
* SET UP THE GROUPS *
* ROUTINE *
*********************
GROUPS HS4
INDIVIDUALS
T CUBE
F GVAR * GVAR * GVAR
G 3.0 * GVAR * GVAR
H 6.0 * GVAR
ENDATA