In particular, cosine of alpha, I can get, well, we know how to find the angle between two vectors. 特别地,能得到α角的余弦值,我们知道如何找两向量的夹角。
The six parameters of single trail alpha wave are computed and analyzed: pre-stimulus amplitude and phase angle, post-stimulus amplitude and latency of first positive and negative peak. 计算每次刺激前的幅度(Pr)、相位(φ),和刺激后的第一个正(P)波和第一个负(N)波的潜伏期与幅度共6个参数。