This function is likely useful only for debugging. It returns the
identification number of the ring
R
. Note that CoCoA
considers two rings to be equal if and only if they have the same ID.
Example
/**/ R ::= QQ[x,y,z];
/**/ S ::= QQ[x,y,z]; // creates a separate copy
/**/ R = S;
false
/**/ RingID(R);
7
/**/ RingID(S);
8