离散卷积图法的MATLAB实现程序，MATLAB函数conv只能计算从零开始的两个右边序列的卷积，此程序对序列没有此限制，适用范围更广。-MATLAB discrete convolution diagram method to achieve the program MATLAB function conv can only calculate the convolution of the right sequence from scratch, this program sequence does not have this restriction applies to a wider range.