檢視波形的原始碼

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|<center>'''波形'''<br><img
src=" https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fimg3.doubanio.com%2Fview%2Fnote%2Fl%2Fpublic%2Fp51736150.jpg&refer=http%3A%2F%2Fimg3.doubanio.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1655905136&t=2a9c4700d491b210fcc133f977451f4a" width="280"></center><small>  圖片來自百度</small> 
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表示信号的形状、形式，这个信号可以是波在[[物理介质]]上的移动，也可以是其他物理量的[[抽象]]表达形式。