Listen here, Little Dicky

Comments

• moobythegoldensock@infosec.pub ⁨2⁩ ⁨hours⁩ ago

  It was a fraction in Leibniz’s original notation.

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  • marcos@lemmy.world ⁨20⁩ ⁨minutes⁩ ago

    And it denotes an operation that gives you that fraction in operational algebra…

    Instead of making it clear that d is an operator, not a value, and thus the entire thing becomes an operator, physicists keep claiming that there’s no fraction involved. I guess they like confusing people.

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• chortle_tortle@mander.xyz ⁨7⁩ ⁨hours⁩ ago

  Mathematicians will in one breath tell you in one breath tell you they aren’t fractions, then in the next tell you dz/dx = dz/dy * dy/dx

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  • marcos@lemmy.world ⁨19⁩ ⁨minutes⁩ ago

    Have you seen a mathematician claim that? Because there’s entire algebra they created just so it becomes a fraction.

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  • lmmarsano@lemmynsfw.com ⁨6⁩ ⁨hours⁩ ago

    Brah, chain rule & function composition.

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  • Koolio@hexbear.net ⁨6⁩ ⁨hours⁩ ago

    Also multiplying by dx in diffeqs

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• rudyharrelson@lemmy.radio ⁨9⁩ ⁨hours⁩ ago

  Derivatives started making more sense to me after I started learning their practical applications in physics class. d/dx was too abstract when learning it in precalc, but once physics introduced d/dt (change with respect to time t), it made derivative formulas feel more intuitive, like “velocity is the change in position with respect to time, which the derivative of position” and “acceleration is the change in velocity with respect to time, which is the derivative of velocity”

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  • Prunebutt@slrpnk.net ⁨7⁩ ⁨hours⁩ ago

    Possibly you just had to hear it more than once.

    I learned it the other way around since my physics teacher was speedrunning the math sections to get to the fun physics stuff and I really got it after hearing it the second time in math class.

    But yeah: it often helps to have practical examples and it doesn’t get any more applicable to real life than d/dt.

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  • Lemmygradwontallowme@hexbear.net ⁨8⁩ ⁨hours⁩ ago

    yea, essentially, to me, calculus is like the study of slope and a slope of everything slope, with displacement, velocity, acceleration.

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• benignintervention@lemmy.world ⁨10⁩ ⁨hours⁩ ago

  I found math in physics to have this really fun duality of “these are rigorous rules that must be followed” and “if we make a set of edge case assumptions, we can fit the square peg in the round hole”

  Also I will always treat the derivative operator as a fraction

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• vaionko@sopuli.xyz ⁨9⁩ ⁨hours⁩ ago

  Except you can kinda treat it as a fraction when dealing with differential equations

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  • prole@lemmy.blahaj.zone ⁨7⁩ ⁨hours⁩ ago

    Oh god this comment just gave me ptsd

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  • JustAPenguin@lemmy.world ⁨5⁩ ⁨hours⁩ ago

    Only for separable equations

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• Worx@lemmynsfw.com ⁨9⁩ ⁨hours⁩ ago

  It’s not even a fraction, you can just cancel out the two "d"s

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  • Worx@lemmynsfw.com ⁨9⁩ ⁨hours⁩ ago

    "d"s nuts lmao

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• iAvicenna@lemmy.world ⁨8⁩ ⁨hours⁩ ago

  Look it is so simple, it just acts on an infinite dimensional vector space of differentiable functions.

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• Zerush@lemmy.ml ⁨8⁩ ⁨hours⁩ ago

  When a mathematician want to scare an physicist he only need to speak about ∞

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• devilish666@lemmy.world ⁨5⁩ ⁨hours⁩ ago

  Is that Phill Swift from flex tape ?

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• KTJ_microbes@mander.xyz ⁨9⁩ ⁨hours⁩ ago

  Little dicky? Dick Feynman?

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• Kolanaki@pawb.social ⁨5⁩ ⁨hours⁩ ago

  De dix, boss! De dix!

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