Pi sport
Pi-Sport is the sport of memorizing the circle number Pi ( ancient Greek Π or π; value 3.14159…).
Memorizing pi is believed to be the best way to demonstrate remembering long numbers. The unofficial world record for memorizing Pi is now (as of October 2006) at 100,000 digits, set by Akira Haraguchi .
technology
Special mnemonic techniques are used to memorize Pi . The technique differs according to the memory artist's taste, his talents and the number of decimal places to be memorized. The Major method is sufficient for fewer than 1000 decimal places, but the Dominic method or the SVO method is often used for more.
When it comes to memorizing a few digits, simple mnemonics are best. When learning 1000 digits or more, however, it is necessary to develop more complex memorization systems or to modify them.
Memory artist
Suresh Kumar Sharma
The Indian Suresh Kumar Sharma is the world record holder with 70,030 decimal places, which he recited without errors on October 21, 2015 in a time of 17 hours and 14 minutes.
Rajveer Meena
The Indian Rajveer Meena was the world record holder with a confirmed 70,000 decimal places, which he recited flawlessly on March 21, 2015 in a time of 10 hours.
Chao Lu
The Chinese Chao Lu was the official world record holder with a confirmed 67,890 decimal places, which he recited flawlessly on November 20, 2005 in a time of 24 hours and 4 minutes. He was a record holder of both the Guinness Book of Records and the Pi World Ranking List .
Akira Haraguchi
The Japanese Akira Haraguchi memorized 100,000 decimal places and broke his old, also unofficial, record with 83,431 decimal places, but never officially confirmed. His record attempt began at 9 a.m. on October 3, 2006 and ended at 1:28 a.m. the next day. This meant that the sequence of numbers played back over 16 hours.
Haraguchi assigns Japanese moras ( Kana ) to the digits , e.g. B. the 0 the mores o, ra, ri, ru, re, ro, wo, on or oh, and the 1 the mores a, i, u, e, hi, bi, pi, an, ah, hy, hyan , bya or byan. From these he then creates stories. The first 15 digits become saishi ikokuni mukosan kowakunaku , which translates as “wife and children are abroad, the husband is not afraid”.
Hideaki Tomoyori
Hideaki Tomoyori held the world record for memorizing the number Pi from 1987 to 1995. For his record, the Japanese associated a Japanese word with a pair of numbers, which was very similar to the name of the number. Tomoyori built a little story out of five such pictures, i.e. ten digits. He again associated a key word with this story. He remembered these key words with the help of a story.
Ben Pridmore
The 2004 world memory champion Ben Pridmore planned in 2005 to set a new world record with 50,000 digits. He managed to memorize the digits that far, but Akira Haraguchi got ahead of him .
For his project, Pridmore originally did not want to take part in the 2005 World Memory Championship, but decided at short notice to do so and finally came in fifth.
He used the so-called loci method for this memory performance . In doing so, you place images on mental waypoints in your head by linking them. Pridmore also has a picture for each of the digits from 000–999. When memorizing, he links three such images, i.e. nine numbers, to a story, which he stores on a waypoint, this method is called the SVO method. In total, he used around 6000 such points.
Records in Germany
Frank Mertens set the German record with 15,320 memorized digits on September 16, 2018. Along with Susanne Hippauf (11,104 digits) and Klaus Schubert (10,904 digits), he is the only German who has memorized more than 10,000 digits from Pi. This puts it in 13th place in the global ranking and in 5th place in Europe.
The German arithmetic artist Rüdiger Gamm learned by heart 5000 decimal places without mnemonic technology .
Memory rules
Examples
Time and again, long sequences of numbers have led to simple mnemonics , in which the number of letters in each word indicates one place in the number:
The most well-known motto in German is the following:
“ How,
oh, this seriously causes so many troubles, learn at least, youngsters, easy verse, how, for example, this should be noted! "
In detail up to 31 digits:
“ Never, oh God, oh dear, did you give my brain the strength to keep track of mighty rows of numbers, constantly chained, until the very latest; that's why I changed my skills to letters. "
One more digit - more are not possible because the next digit is a 0 - provides the description of the mathematical relationship :
“The aim of e to the power of i is real,
it doesn't work with that exponent.
Imaginary shoals are hidden by
those who discreetly
stir pi with prime number two to this number with courage,
until unity feels awakening. "
Unless one evaluates words with more than nine letters as 0 (zero):
“To you, o hero, o noble philosopher,
you noble spirit, whom many thousands admire!
What you bring us shines all the time. What you have
thought up will shine even more clearly in the distance
, arch thinker,
always inexhaustible, you noblest inventor! "
Shorter is:
“ Give O God, O Father, ability to learn! "
Or:
“ It is difficult, oh Isaac, to know what it stands for! "
other version, with introductory verse:
“It is probably Pi the size that turns my head:
Isn't it difficult to know what it stands for? "
Or (by substituting the digits with historical data):
" Three point hus burned and Brennabor
produce the number pi."
Johannes Hus was burned in Konstanz in 1415 and Brandenburg (lat. Brennabor) was destroyed by fire in 926.
An English poem with 12 decimal places is:
See I have a rhyme assisting
My feeble brain, its tasks often resisting.
This English episode hides many places after the comma:
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 motto also honors Archimedes:
Que j'aime à faire connaître un nombre utile aux sages! Immortel Archimède, artiste, engineer,
Qui de ton jugement peut priser la valeur? Pour moi tonprobleme eut de pareils avantages.
Other possibilities are:
How I wish I could enumerate PI easily ...
Pie. I wish I could determine pi, Eureka cried the great inventor, christmas pudding christmas pie, is the problems very center.
How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics. All of your geometry, Mr. 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.
Near a Raven , a poem by Mike Keith, which he wrote in 1995 based on Edgar Allan Poe's The Raven , is particularly long . With the help of the poem you can remember exactly 740 places.
Greek memory verse:
"The great God always applies geometry to everything."
Web links
Individual evidence
- ↑ a b Tomoko Otake: Life's Meaning Explored Through Pi. How can anyone remember 100,000 numbers? In: The Japan Times . December 17, 2006, archived from the original ; accessed on November 2, 2019 .