[Spice-devel] fast symbolic transfer function derivatives

[Frediano Ziglio]

> Dear all,

> I trust that I have an excellent proposition for the theme in the subject of
> this post. Using my algorithm for the evaluation of all the first and second
> derivatives (by circuit parameters) of the symbolic transfer function
> asymptotically approaches the time of the evaluation of transfer function
> itself.

> Using these derivatives allows substantially reduce the time of circuit
> parameter optimization because of much better precision of the derivatives
> evaluation (in comparison with non-symbolic derivatives evaluation) and an
> opportunity to apply optimization methods using the second derivatives.

> I am looking for discussing with or presenting this to ppl who implemented
> symbolic transfer function generation or interested in using the symbolic
> functions for parameter optimization or sensitivity evaluation.

> Cheers,

> Valeri A .

Hi,
  I have the impression you posted to the wrong Spice project,
we are Spice as www.spice-space.org, not https://en.wikipedia.org/wiki/SPICE.

Frediano