The Natural Logarithm and its Series Expansion - 2 Ways [ ln(x+1) at 0 ]

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  • Опубликовано: 18 янв 2025

Комментарии • 32

  • @tatjanagobold2810
    @tatjanagobold2810 5 лет назад +10

    Flammy, this day was quite shitty for me due to terrible recurring migraines, but this video lifted me out of bed because I just love series expansions and all your videos in general

  • @luchisevera1808
    @luchisevera1808 5 лет назад +29

    Why do they call it a natural log if there are no trees to be seen? HmMmMmM...

    • @69erthx1138
      @69erthx1138 5 лет назад +1

      Because it's unnaturally derived by inverting the Napier series?

    • @remlatzargonix1329
      @remlatzargonix1329 5 лет назад +1

      Luchi Severa .....it used to be called the Napierian log, more commonly than the natural log, but now, it seems the other way around.

  • @sichel94sam
    @sichel94sam 5 лет назад +2

    I usually watch these because youre th meme Lord but this time it helped me actually, thank you for being so amazing papa flammy 😍

  • @SuperMiketron
    @SuperMiketron 5 лет назад +2

    Finally a video I can understand myself and not feel like a dumbass. Thanks papa!

  • @officialEricBG
    @officialEricBG 5 лет назад +3

    We literally did this in lectures today, the lecturer had the old way in his notes but he also just went your way :D

    • @hotlinkster123
      @hotlinkster123 5 лет назад

      We did it today too, exactly the same. Could we be in the same university??

  • @abdullasulfikkar5282
    @abdullasulfikkar5282 5 лет назад +5

    I just don't know what to comment 😂😂😂😂😂😂 .Keep it flaming

  • @atrimandal4324
    @atrimandal4324 5 лет назад

    Another series expansion! Thanks papa❤️

  • @nontrivialdog
    @nontrivialdog 5 лет назад +3

    I just used this to obtain the perturbative expansion of the free energy of a weakly interacting fermi gas!

    • @nontrivialdog
      @nontrivialdog 5 лет назад

      Finding the series is simple if you notice that f'(-x) is the geometric series!

    • @nontrivialdog
      @nontrivialdog 5 лет назад

      Oh nvm you covered that too! Sorry for doubting you papa flammy!

    • @remlatzargonix1329
      @remlatzargonix1329 5 лет назад

      nontrivial dawg ...I usually just use antacids, and then the gas subsequently goes away....

  • @danielescotece7144
    @danielescotece7144 5 лет назад +5

    How about a series on sigma-algebras?

  • @korayacar1444
    @korayacar1444 5 лет назад

    1:29
    It‘s the negative _first_ power, if you‘re curious.
    edit: timestamp

  • @willnewman9783
    @willnewman9783 5 лет назад +1

    Why are you indexing over prime ideals?

  • @abdussalim3661
    @abdussalim3661 5 лет назад +2

    good boi

  • @tobiasguivarch4537
    @tobiasguivarch4537 5 лет назад +1

    I think you missed to put the minus sign in front of the sum symbol on the thumbnail...

  • @amadeuszsitnicki3433
    @amadeuszsitnicki3433 4 года назад +1

    the thumbnail is actually incorrect

  • @okoyoso
    @okoyoso 5 лет назад

    That reminds me. Any progress on that lnx = f(x) + lnf(x) problem?

    • @okoyoso
      @okoyoso 5 лет назад

      @@PapaFlammy69 Maybe I'll post it on the sub

  • @tytuer
    @tytuer 5 лет назад +3

    Logarithm function annoys me. It has no power series that converges for real numbers,( if there is, I do not know) also, I could not find such a function f(x), that is not a logarithm and satisfies lim(x->inf)f(x)=inf and lim(x->inf)(f(x)/lnx)=0.
    Why do I bother myself with these? I am just an engineer. Let's take π=3. Lolz

  • @MurtadhaAljanabi
    @MurtadhaAljanabi 5 лет назад

    Can't we just use uniform convergence of power series to justify interchanging the sum and the integral?

  • @압둘하미드이드리스
    @압둘하미드이드리스 7 месяцев назад

    Good

  • @thiagosalatino1302
    @thiagosalatino1302 5 лет назад +1

    Queria te mandar um problema (._.

  • @muneebahmad7729
    @muneebahmad7729 5 лет назад

    🖤🖤🖤🖤💥❤️

  • @josueantonio2123
    @josueantonio2123 5 лет назад +1

    How to Integrate ( x^2sec^4(x) ) ???
    Help pls!!

  • @attepiltonen6607
    @attepiltonen6607 5 лет назад

    your f looks more like a rho lmao