Add a member to check if the value node is invertible
authorCarlos Lopez <carlos@pcnuevo.(none)>
Mon, 6 Jul 2009 23:49:30 +0000 (01:49 +0200)
committerCarlos Lopez <carlos@pcnuevo.(none)>
Mon, 13 Jul 2009 18:17:02 +0000 (20:17 +0200)
and a member to calculate the inverse. Code in studio
is more independent on core modifications.


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