3 ms·

The other Markov's inequality

• camkego 8mo ago
  It’s been a while since I’ve done my Applied Computational Math Sciences degree, but I still appreciate seeing mathematically oriented posts like this on HN!
  • tzury 8mo ago
    most of my recent post are about math, since it is the only matter that matter. https://news.ycombinator.com/submitted?id=tzury https://news.ycombinator.com/submitted?id=tzury
• zombot 8mo ago
  This made a noticeable woosh sound as it went right over my head. How the hell does a polynomial "wiggle"? But the Chebyshev polynomials, especially in their recursive definition, are a stroke of genius.
  • bumby 8mo ago
    > How the hell does a polynomial "wiggle"? I believe they’re defining “wiggle” as just the slope/rate of change/derivative
    • madcaptenor 8mo ago
      Exactly. Wiggling feels more like a second-derivative thing to me but that's discussed too - Chebyshev polynomials max out the second derivative as well as the first.