[Rivet] Poll: deltaEta -- signed or unsigned?

[Hendrik Hoeth]

Hi guys,

I want to put deltaEta(somevector, somevector) functions in the vector
classes. Would you expect this function to return a signed value or the
abs()?

Cheers,

    Hendrik

-- 
The minimum number of planes one should own is one. The correct number
is n+1, where n is the number of planes currently owned. This equation
may also be re-written as s-1, where s is the number of planes owned
that would result in separation from your partner.       -- Veluminati