Operational Interpretation
For performing arithmetic on some x in Zm,
- we apply
the selector function to determine a representative x
in Z,
- perform the corresponding operation in Z to yield
the result r in Z,
- and then determine the residue class
[r]m in Zm.
Because of congruence, choice of the representative does
not matter.
Author: Wolfgang Schreiner
Last Modification: January 12, 2000