Is my transfer function correct?

[I like Serena]

I see you're notching it up!
This is looking challenging! :)
And you have a name for the formula, Mason's gain.
That is something I can look up.

Now let's see... the sign of loop G3H3 seems wrong.

And your non-touching loops do not appear to be correct.
If I select the first 2 non-touching loops, I find G1G2H1 x G3H3.
But you have G3G4 after that??

Furthermore there are 4 combinations of 2 non-touching loops, but you have only 2 combinations...

 

[Femme_physics]

And your non-touching loops do not appear to be correct.
If I select the first 2 non-touching loops, I find G1G2H1 x G3H3.
But you have G3G4 after that??

Furthermore there are 4 combinations of 2 non-touching loops, but you have only 2 combinations...

Ooohhhhhhh... I understand how it works. Wait :)

http://img24.imageshack.us/img24/444/songut.jpg

Plus fixing the sign of G3H3 to minus before the non-touching loops - agreed

 

[I like Serena]

Looking at you first combination, G1G2H1 is a loop, but G4 is not a loop.
You should use G3G4 instead.

Same thing in your 3rd term.

That's all! You have the signs correct this time round! :)

 

[Femme_physics]

Looking at you first combination, G1G2H1 is a loop, but G4 is not a loop.
You should use G3G4 instead.

Same thing in your 3rd term.

That's all! You have the signs correct this time round! :)

You're right, I got it, I was rushing because I thought I had it. Thank you! :)