I'am working on a parameter extraction of a deep submicron MOSFET, I've used FSD method and I want to compare it with an other method, so I would like to recieve by email a source code in C++ of the simulated diffusion method or simulated annealing.
Also, I want to know more about the physical meaning of the lagrangian multiplier , and how to calculate the standard deviation of a nonlinear multidimentional function. :confused:
BEST RGARDS

Hello!

I have also to find the global minimum of a non linear multidimensional fonction.

Would that be possible to send me your C++ codes, please?
:(


Thanks a lot,
Pascal

Originally posted by Patf
Hello!

I have also to find the global minimum of a non linear multidimensional fonction.

Would that be possible to send me your C++ codes, please?
:(


Thanks a lot,
Pascal

Reply to Mr Pascal who wants the code source C++ for global optimization I can send you this code source (your email is disactivated )but first can you explain to me what are you doing (which kind of object function you want to minimize .
I dont have your email adress.
naas ch

Hello naas ch!

Sorry : I didn't have access to Internet till today.
Here are my email addresses :
pascal.espinouse@polymtl.ca
pascal.espinouse@unilog.fr

As an input, I have a list of spots, abscissas + ordinates :
(ti, yi).
And I have find the 5 parameters 'A', 'B', 'a', 'To' and 'C' to determine the function which is the nearest of these spots.

The function must be like that :
we have x = (t - To) / C

.Y(t) = A + B (tanh x + a*g(x))
with g(x) = 3*(x + 0.5 - squareroot( square(x+0.5) + 0.1)) in some cases,
or g(x) = exp (-2*square(x-1)) + exp(-2(square(x+1)) in other cases.
.Finally we have to respect : -0.1 <= a <= 0.1

So the function I have to minimize is the least squares distance between Y and the spots (ti, yi).

Thus, it is a non-linear multi-variable equation, with a condition.

Thanks a lot!

Hello naas ch,

Have you soluted the global minimum of a non linear multidimensional function?
If so, Would you send me your C++ codes, please?

Email: junli@optware.co.jp

Thank you.

Li Jun

naas ch:
what is FSD method??
you said "I've used FSD method".

Now, has any people solved the problem "the global minimum of a non linear multidimensional function"?
Any C++ code we can take a look??
Any suggestion??


yingjiusa@yahoo.com