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Question: NLPSolve. Funny but nasty problem.

Question:NLPSolve. Funny but nasty problem.

katepodolskaya 32 Maple 10
optimization accuracy precision digits
June 23 2011
3

Dear all,

I have encoutered a funny problem with Optimization package. I minimize some long stuff (lets call it A) and get an answer, e.g.

[.116553990209052046e-19, [n = 4.24568325257496060, rhocut = 1.66125593854788400, m = 2.00000021862965971, rho = .956914761577446150]]

then i just do

evalf(subs(n = 4.24568325257496060, rhocut = 1.66125593854788400, m = 2.00000021862965971, rho = .956914761577446150, A));

and i get

.3e-17


Looks pretty similar, but sometimes the difference between the answers is about e-10!

How this can be coped with?

P.S. I use Maple 10.
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