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Have a piece of Pi - Alram - 03-14-2006

From: Jack Wiedenman


On Tuesday, March 14 (or as it is written in Europe, 3.14), we
observe Pi Day at 1:59 pm (3.14159).

That's right, today is National Pi day, that famous mathematical
ratio between the circumference and the diameter.

Now to further complicate things, today is also the seventy-third
(73rd ) day of the year.

Dividing the 365 days of the year by 73 yields a quotient of five.

Well, the fifth letter of the alphabet happens to be "e" and the
most famous mathematician whose name begins with e is of course,
Albert Einstein - well, guess what . . . Today (pi day) happens to be
Einstein's birthday!

And, as an extra added attraction, the second most famous "e"
mathematician is Leonhard Euler from whom we get the irrational
number e = 2.718281828 . . Which is the basis of so many functions
from compound interest to radioactive decay to population growth.

So there you have it - the two most famous irrational numbers (p and
e) joined together by the common bond of March 14th. So, have a happy
PI day!



Have a piece of Pi - SwissMercenary - 03-14-2006

Quote:Which (e) is the basis of so many functions
from compound interest to radioactive decay to population growth.

Pardon me if I'm completely off the mark, but doesn't it not *really* matter what base logarithm you use when working with those problems? Just that e is often used, seeing as how it is the 'natural' logarithm's base.

Have a piece of Pi - Flymo - 03-14-2006

Alram,Mar 14 2006, 08:13 PM Wrote:On Tuesday, March 14 (or as it is written in Europe, 3.14[right][snapback]104547[/snapback][/right]
It's written 14.3 in every European country I know of...


Have a piece of Pi - NiteFox - 03-14-2006

Flymo,Mar 14 2006, 08:49 PM Wrote:It's written 14.3 in every European country I know of...
[right][snapback]104553[/snapback][/right]
Yup. It's those crazy, misguided Yanks that put the month first :)

Have a piece of Pi - Alram - 03-14-2006

QUOTE(Flymo @ Mar 14 2006, 08:49 PM)
It's written 14.3 in every European country I know of...
*


Yup. It's those crazy, misguided Yanks that put the month first smile.gif


--------------------
QUOTE

Well, exactly what is the significance of 14.3? It seems like the Europeans need to add 2 more monts to the year in order to celebrate Pi day. I guess you could hire a plane to fly a banner ad over the Riviera that reads 3.14159 and that would be a Pi in the sky. Or perhaps on Halloween you could measure the circumference of a pumpkin to have some pumpkin pi.


Have a piece of Pi - Rhydderch Hael - 03-14-2006

NiteFox,Mar 14 2006, 12:51 PM Wrote:Yup. It's those crazy, misguided Yanks that put the month first :)
[right][snapback]104554[/snapback][/right]
Frankly, I can hardly see how we Americans are the folks who are backwards in this regard.

You try listing a series of dates in the European fashion, and you can hardly pull any chronological sense from it if the day precedes the month. With the American way of writing dates, you'll always count on event tied to the 9th day of the 3rd month showing up on the list before the 3rd day of the 9th month in the year.

Have a piece of Pi - Klaus - 03-14-2006

3.14159265358979323846264338327950288419716939937510582097494459230781640628620899

This is from memory. You can be frightened if you wish. I have no idea why I keep this in my brain.


Have a piece of Pi - Occhidiangela - 03-14-2006

Klaus,Mar 14 2006, 03:46 PM Wrote:3.14159265358979323846264338327950288419716939937510582097494459230781640628620899

This is from memory.  You can be frightened if you wish.  I have no idea why I keep this in my brain.
[right][snapback]104567[/snapback][/right]

My son recited 50 plus places of pi last year, for extra credit in math, the winner at his school did 300! (Seventh Grade) He is going for a higher number this year, I think they do it next week.

"Pie are squared? Not so, pie are round, pie are not squared." ;)

Occhi

Have a piece of Pi - --Pete - 03-14-2006

Hi,

Rhydderch Hael,Mar 14 2006, 02:31 PM Wrote:Frankly, I can hardly see how we Americans are the folks who are backwards in this regard.

You try listing a series of dates in the European fashion, and you can hardly pull any chronological sense from it if the day precedes the month. With the American way of writing dates, you'll always count on event tied to the 9th day of the 3rd month showing up on the list before the 3rd day of the 9th month in the year.
[right][snapback]104564[/snapback][/right]
Yup. For my files, I use 2006-03-14 format. Been doing it for over twenty years (without the dashes in bad old DOS days).

--Pete

Have a piece of Pi - Alram - 03-15-2006

Pete,Mar 14 2006, 05:38 PM Wrote:Hi,
Yup.  For my files, I use 2006-03-14 format.  Been doing it for over twenty years (without the dashes in bad old DOS days).

--Pete
[right][snapback]104580[/snapback][/right]
Phi on you.

Have a piece of Pi - Klaus - 03-15-2006

Occhidiangela,Mar 14 2006, 03:25 PM Wrote:My son recited 50 plus places of pi last year, for extra credit in math, the winner at his school did 300!  (Seventh Grade)  He is going for a higher number this year, I think they do it next week. 

"Pie are squared?  Not so, pie are round, pie are not squared."  ;)

Occhi
[right][snapback]104576[/snapback][/right]

It's interesting that 50 is sort of the "entry level" for memorizing pi. I did the first 50 when I was in 7th grade - and never forgot them. The other 30 or so I did more recently. I have no doubt that I could crank it up to 300 or 1000 or whatever I would care to shoot for, if I cared to expend the effort. Which mostly, I don't. I might try and get the next 20 or so (to make it a round 100 digits), but I'm not in any real hurry.


Have a piece of Pi - yangman - 03-15-2006

We're having a Drink Until Pi Equals Three celebration. Should be fun, especially after such a craptacular week academically.

Have a piece of Pi - GenericKen - 03-15-2006

A ytmnd for every occasion.

http://learnpi.ytmnd.com/

Have a piece of Pi - Flymo - 03-15-2006

A nice mnemonic for remembering the first 126 (I think) places:

Que j'aime à faire apprendre ce nombre utile aux sages !
Immortel Archimède, artiste ingénieur,
Qui de ton jugement peut priser la valeur ?
Pour moi, ton problème eut de pareils avantages.
Jadis, mystérieux, un problème bloquait
Tout l'admirable procédé, l'œuvre grandiose
Que Pythagore découvrit aux anciens Grecs.
0 quadrature ! Vieux tourment du philosophe
Insoluble rondeur, trop longtemps vous avez
Défié Pythagore et ses imitateurs.
Comment intégrer l'espace plan circulaire ?
Former un triangle auquel il équivaudra ?
Nouvelle invention : Archimède inscrira
Dedans un hexagone ; appréciera son aire
Fonction du rayon. Pas trop ne s'y tiendra :
Dédoublera chaque élément antérieur ;
Toujours de l'orbe calculée approchera ;
Définira limite ; enfin, l'arc, le limiteur
De cet inquiétant cercle, ennemi trop rebelle
Professeur, enseignez son problème avec zèle


Have a piece of Pi - whyBish - 03-16-2006

Alram,Mar 15 2006, 09:13 AM Wrote:number e = 2.718281828 . . Which is the basis of so many functions
[right][snapback]104547[/snapback][/right]
Which happens to represent the 71st day of february which is April 12th
Which happens to be the anniversary of (1892) George C Blickensderfer patenting the portable typewriter
Which just so happens to have an 'e' on it :lol:

Have a piece of Pi - Boutros - 03-16-2006

I memorized the first 100ish digits of pi back in the 6th or 7th grade. Now, 12+ years later I still remember them perfectly, I'm not sure I could forget if I tried.

3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798

I think the next number is a 2. But after that I have no idea. I could probably learn to go higher, but I'm afraid I just don't have the interest in it that I had when I was 11.

Edit: Typo, not in the number though :D

Have a piece of Pi - eppie - 03-16-2006

Pete,Mar 14 2006, 10:38 PM Wrote:Hi,
Yup.  For my files, I use 2006-03-14 format.  Been doing it for over twenty years (without the dashes in bad old DOS days).

--Pete
[right][snapback]104580[/snapback][/right]

Indeed the american way is better...especially in the computer age.
So let's just say americans got lucky on this one. :D
(miles, yards, inches, psi, pounds, stones etc. remain bad choices, I wonder why after Independance day they didn't drop all these englisch units as well?.)



Have a piece of Pi - Premezilla - 03-16-2006

Flymo,Mar 14 2006, 11:28 PM Wrote:A nice mnemonic for remembering the first 126 (I think) places:

Que j'aime à faire apprendre ce nombre utile aux sages !
Immortel Archimède, artiste ingénieur,
Qui de ton jugement peut priser la valeur ?
Pour moi, ton problème eut de pareils avantages.
Jadis, mystérieux, un problème bloquait
Tout l'admirable procédé, l'œuvre grandiose
Que Pythagore découvrit aux anciens Grecs.
0 quadrature ! Vieux tourment du philosophe
Insoluble rondeur, trop longtemps vous avez
Défié Pythagore et ses imitateurs.
Comment intégrer l'espace plan circulaire ?
Former un triangle auquel il équivaudra ?
Nouvelle invention : Archimède inscrira
Dedans un hexagone ; appréciera son aire
Fonction du rayon. Pas trop ne s'y tiendra :
Dédoublera chaque élément antérieur ;
Toujours de l'orbe calculée approchera ;
Définira limite ; enfin, l'arc, le limiteur
De cet inquiétant cercle, ennemi trop rebelle
Professeur, enseignez son problème avec zèle
[right][snapback]104639[/snapback][/right]

alright, let me try to translate this for my pleasure.

That I would this wiseman's number!
Immortal Archimides, ingenious inventor,
how are you going to show/immortalize? your bravery?
For me, your problem poses something beneficial .
I said a problem
that all admired; a majestic one
that Pythagorean discovered during the time of the ancient Greeks.
Oh four! The old foe of philosophy,
unsolvable, long have you taunted Pythagorean and those that followed.
How to figure out the circumference of a circle?
Make an equivalent triangle?
New invention: Archimides drew a hexagon
using a fabric. Not much is needed, just
fold it over on itself
and you'll always come close to covering the circle
therefore, the limitation (the arc)
of this unwilling circle
Teacher, hurry up and solve this problem.

Thank you, thank you. No babelfish here.

Have a piece of Pi - wakim - 03-16-2006

Klaus,Mar 14 2006, 03:46 PM Wrote:3.14159265358979323846264338327950288419716939937510582097494459230781640628620899

This is from memory.  You can be frightened if you wish. [right][snapback]104567[/snapback][/right]
Student Recites 8,784 Digits of Pi

"Gaurav's parents promised him an Xbox 360 video game console if he had reached his goal [10,790 digits]."




Have a piece of Pi - Occhidiangela - 03-16-2006

eppie,Mar 16 2006, 04:04 AM Wrote:Indeed the american way is better...especially in the computer age.
So let's just say americans got lucky on this one. :D
(miles, yards, inches, psi, pounds, stones etc. remain bad choices, I wonder why after Independance day they didn't drop all these englisch units as well?.)
[right][snapback]104741[/snapback][/right]
We liked the units, they didn't tax us the way the King did, although they seem to tax your mental facilities.

Pound. Livre. Lire. Notice any resemblance to currency conventions of the time? ;)

If I can use either or both sets of units, does that make me multisystemic? :blink:

Occhi