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diff --git a/demos/intfminbnd.dem.sce b/demos/intfminbnd.dem.sce
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+mode(1)
+//
+// Demo of intfminbnd.sci
+//
+
+//Find x in R^6 such that it minimizes:
+//f(x)= sin(x1) + sin(x2) + sin(x3) + sin(x4) + sin(x5) + sin(x6)
+//-2 <= x1,x2,x3,x4,x5,x6 <= 2
+//Objective function to be minimised
+function y=f(x)
+y=0
+for i =1:6
+y=y+sin(x(i));
+end
+endfunction
+//Variable bounds
+x1 = [-2, -2, -2, -2, -2, -2];
+x2 = [2, 2, 2, 2, 2, 2];
+intcon = [2 3 4]
+//Options
+options=list("MaxIter",[1500],"CpuTime", [100])
+[x,fval] =intfminbnd(f ,intcon, x1, x2, options)
+// Press ENTER to continue
+halt()   // Press return to continue
+ 
+//Find x in R such that it minimizes:
+//f(x)= 1/x^2
+//0 <= x <= 1000
+//Objective function to be minimised
+function y=f(x)
+y=1/x^2;
+endfunction
+//Variable bounds
+x1 = [0];
+x2 = [1000];
+intcon = [1];
+[x,fval,exitflag,output,lambda] =intfminbnd(f,intcon , x1, x2)
+// Press ENTER to continue
+halt()   // Press return to continue
+ 
+//The below problem is an unbounded problem:
+//Find x in R^2 such that it minimizes:
+//f(x)= -[(x1-1)^2 + (x2-1)^2]
+//-inf <= x1,x2 <= inf
+//Objective function to be minimised
+function y=f(x)
+y=-((x(1)-1)^2+(x(2)-1)^2);
+endfunction
+//Variable bounds
+x1 = [-%inf , -%inf];
+x2 = [ %inf , %inf];
+//Options
+options=list("MaxIter",[1500],"CpuTime", [100])
+[x,fval,exitflag,output,lambda] =intfminbnd(f,intcon, x1, x2, options)
+//========= E N D === O F === D E M O =========//