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  3. Happy π Day!

Happy π Day!

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  • gutenberg_org@mastodon.socialG gutenberg_org@mastodon.social

    @capnthommo https://americanhistory.si.edu/explore/stories/pi-day-american-celebration

    patrick@mendeddrum.orgP This user is from outside of this forum
    patrick@mendeddrum.orgP This user is from outside of this forum
    patrick@mendeddrum.org
    wrote last edited by
    #4

    @gutenberg_org @capnthommo https://brilliantmaps.com/wp-content/uploads/2015/01/dateformat.png Only the US uses that format. The rest of the world doesn’t. Which was the point. See you on the 22nd of July!

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    • gutenberg_org@mastodon.socialG gutenberg_org@mastodon.social

      Happy π Day! And Albert Einstein was born #OTD 147 years ago!

      Link Preview Image
      Pi - Wikipedia

      favicon

      (en.wikipedia.org)

      Isaac Newton used infinite series to compute π to 15 digits, later writing "I am ashamed to tell you to how many figures I carried these computations".

      Link Preview Image
      Pi - Wikipedia

      favicon

      (en.wikipedia.org)

      "I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."

      Einstein at PG:
      https://www.gutenberg.org/ebooks/author/1630

      #books #mathematicsDay

      Link Preview ImageLink Preview ImageLink Preview Image
      M This user is from outside of this forum
      M This user is from outside of this forum
      muddle@infosec.exchange
      wrote last edited by
      #5

      @gutenberg_org Hang on, are we talking about Taylor or McLauren series here? Just curious about what the state of the art was at the time.

      gutenberg_org@mastodon.socialG 2 Replies Last reply
      0
      • capnthommo@c.imC capnthommo@c.im

        @gutenberg_org sorry. Pi day in this country is not until 31st of April. April having only 30 days. So of course piday will not happen.

        gnarf@hachyderm.ioG This user is from outside of this forum
        gnarf@hachyderm.ioG This user is from outside of this forum
        gnarf@hachyderm.io
        wrote last edited by
        #6

        @capnthommo @gutenberg_org I think we're still allowed to have maths-based fun even if the date thing doesn't make much sense to us 🙂

        gutenberg_org@mastodon.socialG 1 Reply Last reply
        0
        • gutenberg_org@mastodon.socialG gutenberg_org@mastodon.social

          Happy π Day! And Albert Einstein was born #OTD 147 years ago!

          Link Preview Image
          Pi - Wikipedia

          favicon

          (en.wikipedia.org)

          Isaac Newton used infinite series to compute π to 15 digits, later writing "I am ashamed to tell you to how many figures I carried these computations".

          Link Preview Image
          Pi - Wikipedia

          favicon

          (en.wikipedia.org)

          "I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."

          Einstein at PG:
          https://www.gutenberg.org/ebooks/author/1630

          #books #mathematicsDay

          Link Preview ImageLink Preview ImageLink Preview Image
          bruce@darkmoon.socialB This user is from outside of this forum
          bruce@darkmoon.socialB This user is from outside of this forum
          bruce@darkmoon.social
          wrote last edited by
          #7

          @gutenberg_org

          And now we take pride in how far we can calculate pi.

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          0
          • M muddle@infosec.exchange

            @gutenberg_org Hang on, are we talking about Taylor or McLauren series here? Just curious about what the state of the art was at the time.

            gutenberg_org@mastodon.socialG This user is from outside of this forum
            gutenberg_org@mastodon.socialG This user is from outside of this forum
            gutenberg_org@mastodon.social
            wrote last edited by
            #8

            @muddle we need to access this book to get a proper answer https://books.google.com/books/about/Pi_Unleashed.html?hl=pt-PT&id=QwwcmweJCDQC

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            0
            • gutenberg_org@mastodon.socialG gutenberg_org@mastodon.social

              Happy π Day! And Albert Einstein was born #OTD 147 years ago!

              Link Preview Image
              Pi - Wikipedia

              favicon

              (en.wikipedia.org)

              Isaac Newton used infinite series to compute π to 15 digits, later writing "I am ashamed to tell you to how many figures I carried these computations".

              Link Preview Image
              Pi - Wikipedia

              favicon

              (en.wikipedia.org)

              "I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."

              Einstein at PG:
              https://www.gutenberg.org/ebooks/author/1630

              #books #mathematicsDay

              Link Preview ImageLink Preview ImageLink Preview Image
              drdusty@mastodon.socialD This user is from outside of this forum
              drdusty@mastodon.socialD This user is from outside of this forum
              drdusty@mastodon.social
              wrote last edited by
              #9

              @gutenberg_org ... reposted 3.14 times 🙂

              gutenberg_org@mastodon.socialG 1 Reply Last reply
              0
              • gnarf@hachyderm.ioG gnarf@hachyderm.io

                @capnthommo @gutenberg_org I think we're still allowed to have maths-based fun even if the date thing doesn't make much sense to us 🙂

                gutenberg_org@mastodon.socialG This user is from outside of this forum
                gutenberg_org@mastodon.socialG This user is from outside of this forum
                gutenberg_org@mastodon.social
                wrote last edited by
                #10

                @gnarf @capnthommo Agreed!!

                1 Reply Last reply
                0
                • drdusty@mastodon.socialD drdusty@mastodon.social

                  @gutenberg_org ... reposted 3.14 times 🙂

                  gutenberg_org@mastodon.socialG This user is from outside of this forum
                  gutenberg_org@mastodon.socialG This user is from outside of this forum
                  gutenberg_org@mastodon.social
                  wrote last edited by
                  #11

                  @drdusty Glad you managed it!

                  1 Reply Last reply
                  0
                  • M muddle@infosec.exchange

                    @gutenberg_org Hang on, are we talking about Taylor or McLauren series here? Just curious about what the state of the art was at the time.

                    gutenberg_org@mastodon.socialG This user is from outside of this forum
                    gutenberg_org@mastodon.socialG This user is from outside of this forum
                    gutenberg_org@mastodon.social
                    wrote last edited by
                    #12

                    @muddle Should be Taylor series as mentioned here (as far as I remember): https://www.gutenberg.org/ebooks/76404

                    M 1 Reply Last reply
                    0
                    • gutenberg_org@mastodon.socialG gutenberg_org@mastodon.social

                      @muddle Should be Taylor series as mentioned here (as far as I remember): https://www.gutenberg.org/ebooks/76404

                      M This user is from outside of this forum
                      M This user is from outside of this forum
                      muddle@infosec.exchange
                      wrote last edited by
                      #13

                      @gutenberg_org Thanks! I somehow thought that the Taylor series was somewhat later than Newton's work on calculus but I guess that they were contemporaries and Newton would have been aware of Taylor's work (as well as earlier formulae for pi).

                      This could become a bit of a rabbit hole, but I'm reminded of Fabrice Bellard's more recent calculations (probably since surpassed?) and wondering what new techniques he used...

                      M 1 Reply Last reply
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                      • R relay@relay.infosec.exchange shared this topic
                      • M muddle@infosec.exchange

                        @gutenberg_org Thanks! I somehow thought that the Taylor series was somewhat later than Newton's work on calculus but I guess that they were contemporaries and Newton would have been aware of Taylor's work (as well as earlier formulae for pi).

                        This could become a bit of a rabbit hole, but I'm reminded of Fabrice Bellard's more recent calculations (probably since surpassed?) and wondering what new techniques he used...

                        M This user is from outside of this forum
                        M This user is from outside of this forum
                        muddle@infosec.exchange
                        wrote last edited by
                        #14

                        @gutenberg_org answered here: https://www.bellard.org/pi/

                        and here: https://www.bellard.org/pi/pi2700e9/faq.html

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