Piphilology

Pi - sport is the sport around the memorization of the circle pi ( Greek: Π or π, 3.14159 ... ).

The memorization of Pi is considered the best way to make memorizing long numbers to the test. The unofficial world record for memorization of pi is now (as of October 2006) at 100,000 jobs, set up by Akira Haraguchi.

• 4.1 Examples

Technology

For the memorization of pi specific mnemonic techniques are applied. The technique differs here to taste the memory of the artist, his talents and the amount of decimal places to memorierenden.

When it comes to a few numbers to memorize, simple maxims are best suited. In the learning of 1000 digits or more, however, it is necessary to develop more complex Memoriersysteme, or change for themselves.

Memory artists

Chao Lu

The Chinese Chao Lu is the official world record holder with confirmed 67,890 decimal places, which he flawlessly recited in a time of 24 hours and 4 minutes on 20 November 2005. It is guided both by the Guinness Book of Records as well as the Pi World Ranking List as the record holder.

Akira Haraguchi

The Japanese Akira Haraguchi coined a 100,000 decimal places, breaking it, though never officially confirmed its old, also unofficial record with 83 431 decimal places. His record attempt began on 3 October 2006 at 9 clock in the morning and ended the next day 01:28 clock. Thus took the reproduction of the sequence of numbers 16 hours.

Haraguchi has the numeric Moren Japanese ( Kana ) to, for example, 0 of the Moren o, ra, ri, ru, re, ro, where, on or oh, and the one which Moren a, i, u, e, hi, bi, pi, to, ah, hy, hyan, bya or byan. From these he then forms stories. Thus, the first 15 digits to Saishi ikokuni mukosan kowakunaku, which translates as " wife and children are abroad, the husband has no fear " means.

Hideaki Tomoyori

Hideaki Tomoyori held the world record in memorizing the number Pi 1987 until 1995. For his record associated to the Japanese each with a pair of numbers a Japanese word that closely resembled the name of the number. From five such images, ten digits, Tomoyori formed a little story. For this story he associated again a keyword. These key he found himself once again with the help of a story.

Ben Pridmore

The World Memory Champion Ben Pridmore of 2004, planned in 2005, set a new world record with 50,000 digits. He made it though to memorize the numbers so far, but Akira Haraguchi him came before.

For his project Pridmore did not want to participate in the World Memory Championship in 2005 originally, but decided in the short term but still for it and was finally fifth.

He used the so-called method of loci for this memory. It is placed on mental waypoints in his head by linking images from. Furthermore Pridmore has one image at the numbers of 000-999. When memorization he linked three each such Images, nine numbers into a story, which put up on a waypoint. So overall, he used about 6,000 such points.

Records in Germany

The German record presented Jan Harms from Hannover with memorized 9,140 digits on 27 July 2007. Scribble he needed about 1 second per digit. In addition Harms holds since that date the world record in the " Everest of Memory test" with a time of 20 minutes and 30 seconds. These 50 blocks are chosen each with 5 digits from the first 10,000 decimal places to which the athlete then the 5 digits must call before and after.

The German artist Rüdiger Gamm learned computing claims to 5,000 decimal places without mnemonics heart.

Rules to remember

Examples

Again and again, long sequences of numbers have led to simple observation records where the number of letters of each word indicating one digit of the number:

The certainly most well-known in the German mnemonic is the following:

"How, oh this makes seriously so many many toil, Learning, after all, young men, light Verselein, such as, for example, this may be to remember! "

At length up to 31 digits:

" Never, oh God, oh good, you verliehst my brains the power powerful Zahlreih'n chained permanently to remember faithful until the latest time; drum I have Ludolfen me recoined to letters. "

One more point more - more is not possible because the next digit is a 0 - returns the description of the mathematical relationship:

" Let e ​​i highly real bezwecket, it does not work with that exponent. Imaginary shoal verdecket, who discreetly Pi with two prime stirred at this figure with courage, to such unit revival feel. "

Less is:

"Give O God, O Father ability to learn! "

Or:

" Is it yet, O Isaac, difficult to know what it stands for! "

Another version, with Einleitungsvers:

"It's probably the size of Pi, which turned my head: Is, s but o jerum difficult to know what it stands for. "

Or ( by substituting the numbers with historical data):

"Three -point Hus burned and Brennabor bring forth the number pi. "

John Hus was burned in 1415 in Konstanz and Brandenburg (Latin Brennabor ) 926 was destroyed by fire.

An English poem with 12 decimal places is:

"See I have a rhyme assisting marketing My feeble brain, its tasks ofttimes resisting. "

Hides many decimal places this English episode:

" Now I, even I, would celebrate. In rhymes unapt, the great Immortal Syracusan, rivaled nevermore, who in his wondrous love, passed on before, left men his guidance, how to circles mensurate. "

The following French mnemonic also honors Archimedes:

" Que j'aime à faire un nombre utile aux sages connaître! Immortel Archimede, artiste, Ingénieur, Qui peut jugement de ton priser la valeur? Pour moi ton problème de eut pareils avantages. "

Other possibilities are:

"How I wish I could enumerate PI easily ... "

" Pie. I wish I could deterministic mine pi, Eureka cried the great inventor, christmas pudding christmas pie, is the problems verycentre. "

"How I want a drink, alcoholic of course, after the heavy lectures Involving quantum mechanics. All of thy geometry, Herr Planck, is fairly hard. "

" May I have a large container of coffee? - Thank You! "

"(3) I know a maths professor, he always weeps and sighs Whenever polyhedra capsize. "

Especially long is Near a Raven, a poem by Mike Keith, he has written in 1995 based on Edgar Allan Poe's The Raven. With the help of the poem you can remember exactly 740 points.

Greek memory verse:

" Ἀεὶ ὁ θεὸς ὁ μέγας γεωμετρεῖ τό σύμπαν. "

" The great God always uses the geometry to everything. "