NEC-LIST: minimization routine

Hi,

I'm looking for a minimization routine for constarined multi variable
(real numbers). I'm trying to do ray-tracing through n layers
(defined by analytical formulas, so I can calculate the derivatives).
One could do the trigonometry for a certain geometry, but I intend to
use different formulas for the layers, so this mean that the
"trigonometry job" would be necessary for each case. I was going to
use Fermat's principle to minimize the function for the ray-path
intersecting the n layers.

Thanks

Tuli

=====================================
NOTE. my new email is : tuli_at_ieee.org
=====================================
 Naftali (Tuli) Herscovici
 Chief Antenna Scientist
 Spike Technologies, Inc.
 1 Chestnut Street
 Nashua, NH 03060
 Tel: 603 594 8856
 Fax: 603 577 9647
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 Home:
 Tel: 508 788 5152
 Fax: 508 788 6226
 Email: htuli_at_anteg.com
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Received on Mon Oct 18 1999 - 15:32:30 EDT