[R] problem with matrix

[Denis Francisci]

Hi all,
I've a simple question.
I have a matrix with same values over and under the diagonal. That's an
example:
  [,1] [,2]     [,3]
[1,]      NaN   45 63.43495
[2,] 45.00000  NaN 90.00000
[3,] 63.43495   90      NaN
How can I extract just the three values over (or under) the diagonal and
convert them in a  vector like this: 45, 63.43495, 90 ?

Thank's in advance

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