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Math

Wednesday Is Pi Day 282

mrbluze points us to an AP writeup on the upcoming Pi Day — 3-14 (which some will observe at 1:59 pm). The article notes: "[T]he world record [for reciting the number Pi] belongs to Chao Lu, a Chinese chemistry student, who rattled off 67,890 digits over 24 hours in 2005. It took 26 video tapes to submit to Guinness," and mentions in passing a Japanese mental health counselor who last fall recited 100,000 digits, but did not choose to submit proof to the record book.
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Wednesday Is Pi Day

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  • I live in Europe (Score:5, Informative)

    by Zouden ( 232738 ) on Monday March 12, 2007 @05:24AM (#18313813)
    So I won't get a Pi day, you insensitive clod!
  • Re:I live in Europe (Score:3, Informative)

    by Recurve Boy ( 936129 ) on Monday March 12, 2007 @05:50AM (#18313957)
    Because in most places the numeric form for dates is DD/MM/YY. Not MM/DD/YY.
  • by jon_anderson_ca ( 705052 ) on Monday March 12, 2007 @06:40AM (#18314191)
    On a serious note, check out the website of your local Engineering school... a bunch (here in Canada anyway) have a Pi Throw on March 14th for charity. You pay $10, somebody gets a cream pie in the face (or, often, they can pay $20 to redirect said pie back to you). The proceeds usually support something worthwhile.
  • Re:Obligatory quote (Score:4, Informative)

    by jacobw ( 975909 ) <slashdot.orgNO@SPAMyankeefog.com> on Monday March 12, 2007 @06:47AM (#18314243) Homepage
    There is actually a word for this: piphilology [wikipedia.org], the art of coming up with mnemonics to remember pi. Like the poem in the parent post, these tend to be phrases or poems in which the number of letters in each word corresponds to a digit of pi.

    One common mnemonic (which I've seen attributed to Isaac Asimov) is "How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics!" If you want to get really fancy, the Wikipedia entry lists a full sonnet, in more-or-less iambic pentameter:
    Now I defy a tenet gallantly
    Of circle canon law: these integers
    Importing circles' quotients are, we see,
    Unwieldy long series of cockle burs
    Put all together, get no clarity;
    Mnemonics shan't describeth so reformed
    Creating, with a grammercy plainly,
    A sonnet liberated yet conformed.
    Strangely, the queer'st rules I manipulate
    Being followéd, do facilitate
    Whimsical musings from geometric bard.
    This poesy, unabashed as it's distressed,
    Evolvéd coherent - a simple test,
    Discov'ring poetry no numerals jarred.


    Admittedly, it's not a very good sonnet, but, hey, what do you want?
  • Re:I live in Europe (Score:5, Informative)

    by Saib0t ( 204692 ) <saibot@h[ ]eria-mud.org ['esp' in gap]> on Monday March 12, 2007 @06:47AM (#18314245)

    But with the American format you start with the month, then go to the smallest, then to the largest. It just seems totally illogical to me, anyone know why it's done that way?
    Probably because of the way they say the dates, "I have an appointment on March 14th" rather than "I have an appointment on the 14th of March".

    As opposed to, says, french "J'ai un rendez-vous le 14 mars" or spanish "tengo una cita el 14 de marzo". Might be the reason...

  • Re:Perhaps a typo? (Score:4, Informative)

    by TeknoHog ( 164938 ) on Monday March 12, 2007 @07:17AM (#18314391) Homepage Journal
    You could try mind maps [wikipedia.org]. They are more visually oriented than traditional note-taking techniques. I often find I can photographically recall parts of my mind maps during exams.
  • Re:I live in Europe (Score:1, Informative)

    by rednuhter ( 516649 ) on Monday March 12, 2007 @07:28AM (#18314437) Homepage Journal
    For those who may be humor deficient
    22/7 = 3.142857...
    mmmmm, pi
  • by Panaqqa ( 927615 ) * on Monday March 12, 2007 @08:11AM (#18314623) Homepage
    I recall a certain rivalry over memorizing digits of pi back in high school. Everyone was around the 2-3 hundred mark when one guy threw down the gauntlet - 500 digits. Well, I put the memorization effort into overdrive and reached about 2,500 before being "crowned" the undisputed school champ. (Yay!)

    Interestingly, that fall in my frosh year at university, reciting pi turned up as a big contest among the first year math students. 2,500 was enough to take the crown at university also.

    There is actually a very efficient way of memorizing strings of random digits one you get the hang of it - the key is groups of 5. The technique works well enough that 25 years later I still remember 500 digits. And the workout I gave my memory skills serves me well today still. Strings of digits are simple - tell me your phone number just once, etc.

    100,000 - now that's impressive. I can tell you from experience, that memory will serve him well in chemistry, especially organic. More power to him!
  • by Gertlex ( 722812 ) on Monday March 12, 2007 @08:40AM (#18314809)
    Why oh why does everyone ignore the fact that 3.14 is Einstein's birthday too? :'(
  • Re:I live in Europe (Score:3, Informative)

    by TheThiefMaster ( 992038 ) on Monday March 12, 2007 @09:56AM (#18315769)
    Ok, according to Wikipedia: http://en.wikipedia.org/wiki/Calendar_date#Middle_ endian_forms.2C_starting_with_the_month [wikipedia.org]

    "Britain originally used day, month, year, then for a short while used month, day, year, and finally reverted to the original form (day, month, year) which was revived around 1900; the USA chose to remain with month, day, year, but did originally use day, month, year as the British did."

    Interesting.
  • Re:I live in Europe (Score:1, Informative)

    by Anonymous Coward on Monday March 12, 2007 @09:57AM (#18315785)
    Wow... no comments that April only has 30 days. Amazing...

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