The name stems from the waveform's appearance on a scope; it looks like the teethofa hand saw.
锯齿波的名字来源于示波器上其波形的形状,它看上去就像是手锯的齿一样。
2
But, if less idealised, it is a lot more human and exhibits one very human characteristic in particular: he might have been the Lord of all he saw, but young King Tut had buck teeth.