Berkeley CSUA MOTD:Entry 24824
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2002/5/14 [Uncategorized] UID:24824 Activity:nil 75%like:24828
5/14    The (12,8) FEC hamming code has the following 4 correcting bits:
        P1 = sum(D1,D2,D4,D5,D7) mod 2
        P2 = sum(D1,D2,D6,D7) mod 2
        P3 = sum(D2,D3,D4,D8) mod 2
        P4 = sum(D5,D6,D7,D8) mod 2.
        How does one derive that?