While initially assuming the signals are vectors in a vector space, to add meaning to the space, it is necessary to use a normed vector spacebecause normed vector spaces are equipped with a distance metric (the inner product and norm).
While initially assuming the signals are vectors in a vector space, to add meaning to the space, it is necessary to use a normed vector spacebecause. Normed vector spaces are equipped with a distance metric (the inner product) a normed vector spacebecause. Normed vector spaces are equipped with a distance metric (norm) a normed vector spacebecause.