基于MATLAB的编写的近似熵算法ApEn，还可以进行后续改进，如快速近似熵算法。-Prepared based on approximate entropy MATLAB algorithm ApEn, it can also be subsequent improvements, such as fast approximate entropy algorithm.

该程序用于计算多种生理信号的非线性特征近似熵，对于解决提取特征提供了便利-The program is used to calculate a variety of physiological signal of the nonlinear characteristic of approximate entropy, to solve the extracted features convenience,,,,