BURKEHAN.SIF

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* SET UP THE INITIAL DATA *
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NAME          BURKEHAN

*   Problem :
*   *********

*   Source: an infeasible problem
*   J. V. Burke and S. P. Han,
*   "A robust SQP method",
*   Mathematical Programming 43 1989:277-303

*   SIF input: Nick Gould, May 2008

*   classification QOR2-AN-1-1

VARIABLES

    X

GROUPS

 N  OBJ       X         1.0
 L  CON

CONSTANTS

 X  BURKEHAN  CON       -1.0

BOUNDS

 XM BURKEHAN  X
 XU BURKEHAN  X         0.0

START POINT

    BURKEHAN  X         10.0

ELEMENT TYPE

 EV SQ        V1

ELEMENT USES

 T  E         SQ
 V  E         V1                       X

GROUP USES

 E  CON       E

OBJECT BOUND

*   Solution (infeasible)

*LO SOLTN               0.0

ENDATA

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* SET UP THE FUNCTION *
* AND RANGE ROUTINES  *
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ELEMENTS      BURKEHAN

INDIVIDUALS

 T  SQ
 F                      V1 * V1
 G  V1                  V1 + V1
 H  V1        V1        2.0

ENDATA