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EXTROSNB.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME EXTROSNB
* Problem :
* --------
* The extended Rosenbrock function (nonseparable version).
* Source: problem 10 in
* Ph.L. Toint,
* "Test problems for partially separable optimization and results
* for the routine PSPMIN",
* Report 83/4, Department of Mathematics, FUNDP (Namur, B), 1983.
* See also Buckley#116. Note that MGH#21 is the separable version.
* SIF input: Ph. Toint, Dec 1989.
* classification SUR2-AN-V-0
* Number of variables
IE N 5 $-PARAMETER original value
*IE N 10 $-PARAMETER
*IE N 100 $-PARAMETER
IE N 1000 $-PARAMETER
* other parameter definitions
IE 1 1
IE 2 2
IA N-1 N -1
VARIABLES
DO I 1 N
X X(I)
ND
GROUPS
N SQ1 X1 1.0
DO I 2 N
XN SQ(I) X(I) 1.0
XN SQ(I) 'SCALE' 0.01
ND
CONSTANTS
EXTROSNB SQ1 1.0
BOUNDS
FR EXTROSNB 'DEFAULT'
START POINT
XV EXTROSNB 'DEFAULT' -1.0
ELEMENT TYPE
EV ETYPE V1
ELEMENT USES
XT 'DEFAULT' ETYPE
DO I 2 N
IA J I -1
ZV ELA(I) V1 X(J)
ND
GROUP TYPE
GV L2 GVAR
GROUP USES
XT 'DEFAULT' L2
DO I 2 N
XE SQ(I) ELA(I)
ND
OBJECT BOUND
LO EXTROSNB 0.0
* Solution
*LO SOLTN 0.0
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS EXTROSNB
INDIVIDUALS
T ETYPE
F - V1 ** 2
G V1 - 2.0 * V1
H V1 V1 - 2.0
ENDATA
*********************
* SET UP THE GROUPS *
* ROUTINE *
*********************
GROUPS EXTROSNB
INDIVIDUALS
T L2
F GVAR * GVAR
G GVAR + GVAR
H 2.0
ENDATA