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geerky42

  • one year ago

Evaluate: \[\Large \dfrac{\mathrm d^{1/2}}{\mathrm dx^{1/2}}~\huge x\] Let's try to solve this without relying outside sources. :)

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  1. anonymous
    • one year ago
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    A fractional order derivative? O_o Thats new to me, haha.

  2. geerky42
    • one year ago
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    Yeah haha. This sort of thing, is from "Fractional Calculus" branch and it is still wide open.

  3. geerky42
    • one year ago
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    You can look it up. At my glance, it is ugly and quite hard to grasp.

  4. anonymous
    • one year ago
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    Is this something you just randomly came across or is it something you need to know? xD

  5. geerky42
    • one year ago
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    Randomly came accross, yeah lol. Feeling like raising awareness to this branch a little bit. And I like to see users go like "wtf mind-blown," you know? haha

  6. anonymous
    • one year ago
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    Hm. So what about it is messing with ya?

  7. geerky42
    • one year ago
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    Actually I was hoping to see how different users would approach to this, but seem I did it in bad time since not many users came... Anyway I was thinking exactly how to interpret half derivative. Maybe we can find a way to like find "average" of \(\dfrac{\mathrm d^n}{\mathrm dx^n}\) and \(\dfrac{\mathrm d^{n-1}}{\mathrm dx^{n-1}}\) Of course, I have completely no idea where to go from here.

  8. anonymous
    • one year ago
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    Well, defining the derivative in a general way makes sense. Looking at the wiki article, finding a way to generalize the derivative as a formula and then plug in values makes sense (since Ive seen the concept in how the gamme function generalizes factorials) and seems like itd be the only way of doing it. But yeah, the interpretation is an odd idea. I guess applying it to any possible equations. I dont know any equations off the top of my head, but any value or result that is dependent on the order of the derivative Im sure could be an application. Maybe PDEs can make use of it? In a physical context, your idea of an average sounds like a good possibility.

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