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//Find x in R^6 such that:
// A simple example with constraints
Aeq= [1,-1,1,0,3,1;
-1,0,-3,-4,5,6;
2,5,3,0,1,0];
beq=[1; 2; 3];
A= [0,1,0,1,2,-1;
-1,0,2,1,1,0];
b = [-1; 2.5];
lb=[-1000; -10000; 0; -1000; -1000; -1000];
ub=[10000; 100; 1.5; 100; 100; 1000];
x0 = repmat(0,6,1);
param = list("MaxIter", 300, "CpuTime", 100);
//and minimize 0.5*x'*Q*x + p'*x with
f=[1; 2; 3; 4; 5; 6]; H=eye(6,6);
[xopt,fopt,exitflag,output,lambda]=qpipoptmat(H,f,A,b,Aeq,beq,lb,ub,[],param)
//Output
// lambda =
//
// lower: [9.982D-15,1.000D-15,7.345D-11,1.005D-14,9.994D-15,1.003D-14]
// upper: [1.000D-15,9.966D-14,7.481D-12,9.525D-14,1.006D-13,9.969D-15]
// ineqlin: [0.3091368,1.197D-12]
// eqlin: [-1.5564027,-0.1698164,-0.7054782]
// output =
//
// Iterations: 13
// exitflag =
//
// 0
// fopt =
//
// - 14.843248
// xopt =
//
// 1.7975426
// - 0.3381487
// 0.1633880
// - 4.9884023
// 0.6054943
// - 3.1155623
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