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SINEVAL.SIF
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***************************
* SET UP THE INITIAL DATA *
***************************
NAME SINEVAL
* Problem :
* *********
* A trigonometric variant of the 2 variables Rosenbrock "banana valley" problem
* Source: problem 4.2 in
* Y. Xiao and F. Zhou,
* "Non-monotone trust region methods with curvilinear path
* in unconstrained optimization",
* Computing, vol. 48, pp. 303-317, 1992.
* SIF input: F Facchinei, M. Roma and Ph. Toint, June 1994
* classification SUR2-AN-2-0
* Problem parameter
RE C 10.0D-4
VARIABLES
X1
X2
GROUPS
N G1 X2 1.0
ZN G1 'SCALE' C
N G2 X1 1.0
N G2 'SCALE' 4.0
BOUNDS
FR SINEVAL 'DEFAULT'
START POINT
SINEVAL X1 4.712389
SINEVAL X2 -1.0
ELEMENT TYPE
EV SINE V1
ELEMENT USES
T E1 SINE
V E1 V1 X1
GROUP TYPE
GV L2 GVAR
GROUP USES
T 'DEFAULT' L2
XE G1 E1 -1.0
OBJECT BOUND
LO SINEVAL 0.0
* Solution
*LO SOLTN 0.0
ENDATA
***********************
* SET UP THE FUNCTION *
* AND RANGE ROUTINES *
***********************
ELEMENTS SINEVAL
TEMPORARIES
R SV1
M SIN
M COS
INDIVIDUALS
T SINE
A SV1 SIN( V1 )
F SV1
G V1 COS( V1 )
H V1 V1 - SV1
ENDATA
*********************
* SET UP THE GROUPS *
* ROUTINE *
*********************
GROUPS SINEVAL
INDIVIDUALS
T L2
F GVAR * GVAR
G GVAR + GVAR
H 2.0
ENDATA