plotting multiple coefficients of polynomial function

Hello,

I have tried to follow the suggested examples for plotting multiple graphs on one figure of the same function with different coefficients.

I've been unsuccessful in my attempts. I am trying to model my function of omega and eta, but with multiple k values.

I started off trying to setup a for loop, but did not get that to work for me.

I tried to just define my k value multiple times and use the "hold on" command, but the graph just maintained the last value of k and excluded the previous k values.

I know I am missing something simple here, but I am not seeing it.

Here is my code:

syms omega__norm 
k = 0.8;
eta__H = omega__norm*k.^2/(omega__norm.^2*(1-k.^2)+1)
fplot(omega__norm,eta__H,[10^-2 10^2])

set(gca,'Xscale','log')
hold off

Again, I would like setup k as a vector of values and plot all of the resulting graphs on a single figure.

Just not seeing how I need to do that properly.

Thank you for your help in advance!

[Shane Palmer]

Oh, just figured it out. I needed a for loop like this:

syms omega__norm 
for k = 0.5:0.05:0.9
eta__H = omega__norm*k.^2/(omega__norm.^2*(1-k.^2)+1)
fplot(omega__norm,eta__H,[10^-2 10^2])
hold on
end

set(gca,'Xscale','log')
hold off

Thought that I had tried that, but it works now, sorry for the hassle.

Answer 1

[Shane Palmer]

See comment above.