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HS14.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME HS14
* Problem :
* *********
* Source: problem 14 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 SQR2-AN-2-2
VARIABLES
X1
X2
GROUPS
N OBJ
G CON1
E CON2 X1 1.0 X2 -2.0
CONSTANTS
HS14 CON1 -1.0
HS14 CON2 -1.0
BOUNDS
FR HS14 'DEFAULT'
START POINT
HS14 X1 2.0
HS14 X2 2.0
ELEMENT TYPE
EV SQ V1
EV SQ-2 V1
EV SQ-1 V1
ELEMENT USES
T E1 SQ-2
V E1 V1 X1
T E2 SQ-1
V E2 V1 X2
T E3 SQ
V E3 V1 X1
T E4 SQ
V E4 V1 X2
GROUP USES
E OBJ E1 E2
E CON1 E3 -0.25 E4 -1.0
OBJECT BOUND
LO HS14 0.0
* Solution
*LO SOLTN 1.42322464
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS HS14
TEMPORARIES
R V1M2
R V1M1
INDIVIDUALS
T SQ-2
A V1M2 V1 - 2.0
F (V1M2)**2
G V1 2.0*(V1M2)
H V1 V1 2.0
T SQ-1
A V1M1 V1 - 1.0
F (V1M1)**2
G V1 2.0*(V1M1)
H V1 V1 2.0
T SQ
F V1 * V1
G V1 2.0 * V1
H V1 V1 2.0
ENDATA