I can't put two functions together with the command hold

I am trying to put in the same axes two functions with the command hold but i don't accomplish it, this is my code

function Calcular1ValueChanged(app, event)

P = 50;

Q = 60;

C1 = 4;

C2 = 7;

a = app.a.Value;

b = app.b.Value;

x = linspace(0,100);

y1 = C1*exp(sqrt(a*b)*x) + C2*exp(-sqrt(a*b)*x) - P/a;

plot (app.Axes,x,y1,'b');

hold on

y = linspace(0,100);

x1 = - C1*exp(sqrt(a*b)*y) - C2*exp(-sqrt(a*b)*y) + Q/b;

plot (app.Axes,x1,y,'g');

end

thanks

Answer 1

[Walter Roberson]

hold(App.Axes,'on')

When you use app designer, the "current" axes is hidden and is not found as the "active" axes when you use "hold"

[Alvaro Mª Zumalacarregui Delgado]

thanks! now i can see both in the same axes