spiral.gms
* NLP written by GAMS Convert at 10/06/06 11:52:25
*
* Equation counts
* Total E G L N X C
* 3 1 0 2 0 0 0
*
* Variable counts
* x b i s1s s2s sc si
* Total cont binary integer sos1 sos2 scont sint
* 4 4 0 0 0 0 0 0
* FX 0 0 0 0 0 0 0 0
*
* Nonzero counts
* Total const NL DLL
* 8 4 4 0
*
* Solve m using NLP minimizing objvar;
Variables x1,x2,x3,objvar;
Equations e1,e2,e3;
e1.. - (-(x1 - sqrt(x1*x1 + x2*x2)*cos(sqrt(x1*x1 + x2*x2)))*(x1 - sqrt(x1*x1
+ x2*x2)*cos(sqrt(x1*x1 + x2*x2))) - 0.005*x1*x1 - 0.005*x2*x2) - x3
=L= 0;
e2.. - (-(x2 - sqrt(x1*x1 + x2*x2)*sin(sqrt(x1*x1 + x2*x2)))*(x2 - sqrt(x1*x1
+ x2*x2)*sin(sqrt(x1*x1 + x2*x2))) - 0.005*x1*x1 - 0.005*x2*x2) - x3
=L= 0;
e3.. - x3 + objvar =E= 0;
* set non default bounds
* set non default levels
x1.l = 1.41831;
x2.l = -4.79462;
x3.l = 1;
* set non default marginals
Model m / all /;
m.limrow=0; m.limcol=0;
$if NOT '%gams.u1%' == '' $include '%gams.u1%'
Solve m using NLP minimizing objvar;