🤷🏻♀️ Retweeted Jordan Ellenberg

"you know, when a square wave passes through a digital filter, it generates errors, called "ringing", and basically you get, a linear signal, a quadratic signal, a cubic signal..."

"next will be a quartic, and then quintic signal,"

"then a sextic. then a septic."
https://twitter.com/JSEllenberg/status/1277318596528607233 …
🤷🏻♀️ added,
7:59 PM - 28 Jun 2020
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