HS61.SIF

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* SET UP THE INITIAL DATA *
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NAME          HS61

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

*   Source: problem 61 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: Ph.L. Toint, November 1990.

*   classification QQR2-AN-3-2

VARIABLES

    X1
    X2
    X3

GROUPS

 N  OBJ       X1        -33.0          X2        16.0
 N  OBJ       X3        -24.0
 E  C1        X1        3.0
 E  C2        X1        4.0

CONSTANTS

    HS61      C1        7.0
    HS61      C2        11.0

BOUNDS

 FR HS61      'DEFAULT'

START POINT

 XV HS61      'DEFAULT'  0.0

ELEMENT TYPE

 EV SQ        V

ELEMENT USES

 XT 'DEFAULT' SQ

 V  E1        V                        X1
 V  E2        V                        X2
 V  E3        V                        X3

GROUP USES

 E  OBJ       E1        4.0            E2        2.0
 E  OBJ       E3        2.0

 E  C1        E2        -2.0

 E  C2        E3        -1.0

OBJECT BOUND

*   Solution

*LO SOLTN               -143.646142

ENDATA

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* SET UP THE FUNCTION *
* AND RANGE ROUTINES  *
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ELEMENTS      HS61

INDIVIDUALS

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

ENDATA