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##

Safe evaluation of a vector

Let us consider a `VECTOR`: due to numerical rounding each element
of this vector represent in fact an interval. The procedure:
INTERVAL_VECTOR Evaluate_Coeff_Safe_Interval(int n,VECTOR &Coeff);

with:
`n`: size of the vector
`Coeff`: the vector

returns an `INTERVAL_VECTOR` guaranteed to include the true value
of the elements of the vector.

Jean-Pierre Merlet
2012-12-20