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BRKMCC.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME BRKMCC
* Problem :
* *********
* Source: Problem 85 (p.35) in
* A.R. Buckley,
* "Test functions for unconstrained minimization",
* TR 1989CS-3, Mathematics, statistics and computing centre,
* Dalhousie University, Halifax (CDN), 1989.
* SIF input: Ph. Toint, Dec 1989.
* classification OUR2-AN-2-0
VARIABLES
X1
X2
GROUPS
N G1 X1 1.0
N G2 X2 1.0
N G3
N G3 'SCALE' 25.0
N G4 X1 1.0 X2 -2.0
N G4 'SCALE' 0.2
CONSTANTS
BRKMCC G1 2.0
BRKMCC G2 1.0
BRKMCC G3 -1.0
BRKMCC G4 -1.0
BOUNDS
FR BRKMC 'DEFAULT'
START POINT
BRKMCC X1 2.0
BRKMCC X2 2.0
ELEMENT TYPE
EV SQ X
ELEMENT USES
T 'DEFAULT' SQ
V E1 X X1
V E2 X X2
GROUP TYPE
GV L2 GVAR
GV INV GVAR
GROUP USES
T 'DEFAULT' L2
T G3 INV
E G3 E1 -0.25 E2 -1.0
OBJECT BOUND
* Solution
*LO SOLTN 0.16904
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS BRKMCC
INDIVIDUALS
T SQ
F X * X
G X X + X
H X X 2.0
ENDATA
*********************
* SET UP THE GROUPS *
* ROUTINE *
*********************
GROUPS BRKMCC
INDIVIDUALS
T L2
F GVAR * GVAR
G GVAR + GVAR
H 2.0
T INV
F 1.0 / GVAR
G - 1.0 / ( GVAR * GVAR )
H 2.0 / ( GVAR**3 )
ENDATA