自己写的一个绘制地震波形的小程序，本来是给同学练习插值和平滑曲线的-himself wrote a mapping of the seismic waveform small program is to have students practice interpolation and smoothing curves, and

通过计算垂直缆地震产生各种波的时距曲线公式，画出其波形-By calculating Time-distance curve equation of various waveforms produced by vertical earthquakes，and draw them with matlab