fmincon examples added

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diff --git a/tests/general_tests/fmincon/fmincon_logical3.sce b/tests/general_tests/fmincon/fmincon_logical3.sce
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+// Example with objective function, equality, inequality constraints and variable bounds
+
+function y=fun(x)
+y=x(1)*x(1)+x(2)*x(2);
+endfunction
+
+x0 = [1,2];
+A=[1,1 ; 1,1/4 ; 1,-1 ; -1/4,-1 ; -1,-1 ; -1,1];
+b=[2;1;2;1;-1;2];
+Aeq = [1,3]
+beq= [5]
+lb = [0 0]
+ub = [2 1.5]
+
+//Output
+//Optimal Solution Found.
+// hessian  =
+// 
+//    2.    0.  
+//    0.    2.  
+// gradient  =
+// 
+//    0.9999999    3.  
+// lambda  =
+// 
+//   lower: [1.820D-08,6.060D-09]
+//   upper: [6.059D-09,0.7267088]
+//   ineqlin: [0.3633544,7.251D-08,3.030D-09,3.463D-09,9.093D-09,9.096D-09]
+//   eqlin: -1.3633544
+//   ineqnonlin: [0x0 constant]
+//   eqnonlin: [0x0 constant]
+// output  =
+// 
+//   Iterations: 21
+//   Cpu_Time: 0.2
+//   Objective_Evaluation: 26
+//   Dual_Infeasibility: 9.075D-11
+// exitflag  =
+// 
+//  0  
+// fopt  =
+// 
+//    2.5  
+// xopt  =
+// 
+//    0.5000000  
+//    1.5  
+
+[xopt,fopt,exitflag,output,lambda,gradient,hessian] = fmincon (fun, x0, A, b, Aeq, beq, lb, ub)