给出了通过序列求近似熵的程序，其中N表示序列的长度-Sequence is given by the approximate entropy of the process, where N denotes the length of the sequence

计算时域信号的近似熵程序,用于脑电信分析中的特征提取，计算脑电信号的近似熵-Calculate the time domain signal approximate entropy program features used in telecommunications analysis of brain extracts, calculated EEG approximate entropy