MATLAB演示信号与系统课程里的相关性质。包括，sz平面映射极零图的响应及其对应关系的动画显示，二阶系统的阶跃响应，傅里叶变换性质，矩形波、锯齿波的傅里叶级数分解的动画演示-MATLAB demo signals and systems related to the nature of the curriculum. Including, sz mapping plane pole-zero diagram of response and correspondence between animation shows the step response of second-order system, Fourier transform nature, rectangular wave, sawtooth Fourier series decomposition of Animation