Untitled

a=0.77;
b=0.19;
c=0.36;
budjet=15; %dollari
profittomin=0.11*budjet; %dollari

% Test sul sistema Algebrico (incognite [X Y]
ytest = sysAlg([10 10]);
solmin=fsolve(@sysAlg, [10 6]);
Xmax=solmin(1);
Ymin=solmin(2);

solmax=fsolve(@sysAlg, [6 10]);
Xmin=solmax(1);
Ymax=solmax(2);

Xrange=[Xmin Xmax];
Yrange=[Ymin Ymax];

function y=sysAlg(x)
a=0.77;
b=0.19;
c=0.36;
budjet=15; %dollari
X=x(1);
Y=x(2);
Ps=a*log(1+b*x(1));
Pw=c*(sqrt(x(2)));
y(1)=x(1)+x(2)-budjet; 
y(2)=0.11*budjet-Ps-Pw; 
end
function y=profitto_tot(X);
Y=budjet-X;
Ps=a*log(1+b*X);
Pw=c*(sqrt(Y));
y=Ps+Pw;
end