a homework question

來源: cutecat123 於 2008-02-16 11:17:56 [] [舊帖] [給我悄悄話] 閱讀數 : (162 bytes)

In a modem constellation diagram, there are data points at the following coordinates: (1,1), (1, -1), (-1, 1), and (-1, -1). How many bits we have here? THANKS!!!

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