# Talk:Z-channel (information theory)

Let ${\displaystyle A(n,d,w)}$ denote the maximal number of binary vectors of length n of weight[clarification needed] w and with Hamming distance at least d apart.
I moved the above line here from the article because it did not lead to anything, i.e. the definition of ${\displaystyle A(n,d,w)}$ was not used. Also, the term "weight" is not defined. 178.38.60.255 (talk) 20:43, 28 November 2014 (UTC)