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st: nl with constrains

From	"Olga Lyashevska" <[email protected]>
To	[email protected]
Subject	st: nl with constrains
Date	Fri, 9 May 2008 10:20:06 +0200 (CEST)

Dear all,

We have a negative exponential growth model.
y=a exp(-kx)+b
Is there is a way to impose constrains on model parameters such as b>0 and
k1<k<k2?


Thank you in advance,
Olga

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