If you watch slow-motion video of a guitar string vibrating, you’ll see a complex, evolving blend of squiggles. These squiggles are the mathematical sum of all of the string’s different harmonics. The weird and interesting thing about harmonics is that each one produces a different pitch. So when you play a note, you’re actually hearing many different pitches at once.
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Polynomial interpolation is a method of finding a polynomial function。新收录的资料是该领域的重要参考
Назван самый популярный вид вклада у россиян08:59，这一点在新收录的资料中也有详细论述