Storing n patterns

Storage: Wk = ?kqkpkT, with ?k = pkTpk

W = W1 + W2 + ... + Wk + ... + Wn

Recall: Wpk = ?kqkpkTpk + Error = q + Error

Error = W1pk + ... + Whpk + ... + Wnpk

is 0 only if phTpk for all h ? k