Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

For the best Twitter experience, please use Microsoft Edge, or install the Twitter app from Microsoft Store.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
fermatslibrary's profile
Fermat's Library
Fermat's Library
Fermat's Library
@fermatslibrary

Tweets

Fermat's Library

@fermatslibrary

A platform for illuminating academic papers. We publish an annotated paper every week. Our chrome extension for arXiv: https://fermatslibrary.com/librarian 

fermatslibrary.com
Joined September 2015

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    Fermat's Library‏ @fermatslibrary Jan 27
    • Report Tweet

    A visual proof A square inscribed in a semicircle has 2/5 the area of a square inscribed in the circle of the same radius. 🧐pic.twitter.com/f3hG51CYhm

    6:24 AM - 27 Jan 2020
    • 525 Retweets
    • 2,808 Likes
    • Single-Photon Group ✨💥💫🌟 Maritza Tangerina Mia Angshuman Roy Kalocyni Cade Richards™ Mika VirBill Abloh🇱🇨🗽 Tony Estay
    15 replies 525 retweets 2,808 likes
      1. New conversation
      2. Aadesh gupta‏ @Aadeshspeaking Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        Anyone got the mathematical proof? Bio stud here.

        3 replies 1 retweet 17 likes
      3. Racnoss Empress pls dm‏ @Calybium Jan 27
        • Report Tweet
        Replying to @Aadeshspeaking @fermatslibrary

        The big square's sides can be seen as diagonals of a 1 by 3 rectangle. Through the pythagorean theorum, 1²+3²=(side length)², so the side length is √10, and the area 10. The little square is 2 by 2, so it uas an area of 4. 4/10 is two fifths

        5 replies 4 retweets 85 likes
      4. 3 more replies
      1. New conversation
      2. Anna‏ @lilaloveslingos Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        "Visual proof" is an oxymoron. Here's visual proof 64 = 65.pic.twitter.com/xVMLLhMpxc

        4 replies 4 retweets 16 likes
      3. dcjnq‏ @dcjnq Jan 27
        • Report Tweet
        Replying to @lilaloveslingos @fermatslibrary

        But the yellow area in one shape is visually provable to not equal the other: [1] 2 x (2x3) + 2x5 + 1x3 = 25 [2] 3x8 = 24 So the visual proof is still valid as a proof of something (equality or inequality).

        1 reply 0 retweets 12 likes
      4. 3 more replies
      1. Mauricio 4.6.0‏ @mauricio_agg Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        pic.twitter.com/migU3ZVKv4

        0 replies 0 retweets 5 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Roger Sauer‏ @rsauer3473 Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        Well, two fifths later, I’m still confused.

        0 replies 0 retweets 4 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. H.Ü.M.‏ @humkrmn Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        Örtmenim @mso_bjk

        1 reply 0 retweets 1 like
      3. ʍsőᴶᴷ‏ @mso_bjk Jan 27
        • Report Tweet
        Replying to @humkrmn @fermatslibrary

        Çoh hoş ;)

        0 replies 0 retweets 1 like
      4. End of conversation
      1. wu am i‏ @sivakd Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        2*2 and √10*√10

        0 replies 0 retweets 2 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. jcmdubreuil‏ @jcmdubreuil Jan 27
        • Report Tweet
        Replying to @fermatslibrary

        did... did you just copyright a mathematical proof?

        2 replies 0 retweets 0 likes
      3. Krieger‏ @Krieger4589 Jan 27
        • Report Tweet
        Replying to @jcmdubreuil @fermatslibrary

        Nah that's just a @ symbol. Must have made it and instinctively put his watermark on it. Ya know to draw people to his page. I dont suspect any copyright Intent or scummy play like that.

        0 replies 0 retweets 2 likes
      4. End of conversation

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2020 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Imprint
      • Cookies
      • Ads info