[portland] Any Mathematical Coders Here?
rshepard at appl-ecosys.com
Thu May 8 14:58:54 CEST 2008
On Wed, 7 May 2008, mark gross wrote:
> I know enough to get into trouble. But I don't know what a sigmoind cure
> is other than http://mathworld.wolfram.com/SigmoidFunction.html which
> isn't very helpful.
No, the sigmoidal function doesn't work.
> If you are substituting in arctan's for this curve then I have to think
> you are looking for something that "looks" like something as opposed to
> something that means anything.
Arctan doesn't work, either. I need a function which will provide a y
value for any given x value in the domain.
Richard B. Shepard, Ph.D. | Integrity Credibility
Applied Ecosystem Services, Inc. | Innovation
<http://www.appl-ecosys.com> Voice: 503-667-4517 Fax: 503-667-8863
More information about the Portland