(vek’t∂r) 1. A one-dimensional array; a sequence of values that go together in some way, such as values of a wavelet at successive discrete time intervals. Thus a wavelet which has the values 0.75, 0.25, –0.50 at three successive time intervals and is zero at other times might be considered as a 3-term row vector, [0.75, 0.25, –0.50]. Vector data represent data as points, lines, or polygons. See matrix. 2. A quantity having both a magnitude and a direction; see Figure V-2. 3. An ordered sequence of numbers; a 1×n matrix. Vectors are not restricted to three dimensions.