Multiple plots starting from different points in one graph

Hello everyone and thanks in advance for reading my post.

I am struggling a bit with my code. What I want to do is to use 3 different equations and plot some graphs. However I can't make these three equation get into the same graph (in different positions). For example I want for x = (-1,-0.5) to use psi1, for x = (-0.5,0.5) psi2 and psi3 for x = (0.5,1), and then do it for multiple plots (which is the goal).

To make more clear how this code 'should' work, by entering a value for g (it is better to enter 10 if you want to check it), there should be 4 graphs, each one for a different value of k, where k is the solution of an equation f(k) = 0. I have attached both my function and my main code to this post.

Thanks a lot once again.

[dpb]

To plot various lines is a couple of different ways -- the simplest is probably to simply build an X,Y pairing for each respectively and then call plot with the whole set.

x1=[-1  :0.1:-0.5]';  ps1=f(x1);
x2=[-0.5:0.1: 0.5]';  ps2=f(x2);
x3=[ 0.5:0.1: 1.0]';  ps3=f(x3);
plot(x1,ps1,'b',x2,ps2,'r',x3,ps3,'g')

Alternatively you can draw the first, use xlim to set the range to something at least as large as the range of x overall and then plot each individually.

plot(x1,ps1,'b')
xlim([min([x1(1) x2(1) x3(1) max([x1(end) x2(end) x3(end)])
plot(x2,ps2,'r')
plot(x3,ps3,'g')

Essentially an infinite number of perturbations on the above themes is possible... Alternatively, you can build multiple X,Y vectors and stack them up in a call Then the axes limits will span the range

[asdada]

Thanks a lot!