hello everyone, I've tried both systems or rather have "skimmed", both seem pretty cumbersome and surely require mental conditioning. Well efficacy = technique...
1796
Oleg Roitman
mentalmathan...
May 18, 2005 7:44 am
I am a street performer under nickname "The Human-Computer"; who specializes in "Mental Math." By calculating equations in my head very quickly, I am able to...
1797
Carlos Miguel Praxedes
carlos_praxedes
May 18, 2005 10:47 am
Hi Mr. Human Computer... I would like to know more about that trick of yours... can you share your secret with us? Thanks in advance, Carlos Miguel Praxedes ...
1798
Emmanuel/DATA
emmanuel_dub...
May 18, 2005 11:14 am
I can explain how it can be done (no evidence that " mister Human Computer does like this) first memorize carefully the following codes for the month and days ...
1799
Emmanuel/DATA
emmanuel_dub...
May 18, 2005 11:32 am
... Sorry ; = 5 September and december 1 = may ... ...
1800
alberto coto
alcoga34
May 18, 2005 12:05 pm
Hi Oleg: Congratulations by your ability. Matthias will be very happy with you:)) What another mental calculations you are able in your "street" performers ? ...
1801
Divesh Shah
mathsshow
May 19, 2005 7:59 am
hi everybody i m divesh shah i wanted to speak to everybody on phone all those whom we met in annaberg for the mental calculation event if u...
1802
George Lane
george972453
May 19, 2005 9:17 am
Hi Oleg Your ability to calculate days for dates is indeed impressive. I was, unfortunately, unable to attend the Mental Calculations World Cup in Germany last...
1803
Carlos Miguel Praxedes
carlos_praxedes
May 19, 2005 10:56 am
dear friend, thank you for your help but... haven't you forgot what's the number for November? Thanks in advance, Carlos Miguel Praxedes ... -- Um abraço, ...
1804
Emmanuel/DATA
emmanuel_dub...
May 19, 2005 11:24 am
0 = January and October 1 = May 2 = August 3 = February and March and october 4 = June 5 = September and December 6 = April and July the serie is 0 3 3 6 1 4...
1805
Kurien Thomas
rajukunjumol@...
May 19, 2005 2:49 pm
Preset pattern of squares, cubes, raised to 4, raised to 5 of numbers containing only “9”s—strange but true. Squares 1. 9^2 = 81 2. 99^2 = 9801 ie...
1806
Arun Mangal
arunmangal@...
May 19, 2005 3:55 pm
Arun Mangal 098281 49201 www.humancalender.com ... From: "Divesh Shah" <mathsshow@...> To: <MentalCalculation@yahoogroups.com> Sent: 19 May, 2005 1:29 PM...
1807
Ben Pridmore
zoom_zoom_ben
May 19, 2005 9:08 pm
The MSO Mental Calculations World Championship will be on Tuesday August 23rd this year. The full MSO schedule is here: ...
1808
matsuo_russell
May 20, 2005 4:46 am
I'm sorry to be a nitpicker but 13 mod 4 is not 3. Also, you have repeated october instead of placing november in the list for 3 = I've seen a method similar...
1809
Emmanuel/DATA
emmanuel_dub...
May 20, 2005 6:02 am
I badly expressed myself ... Actually I meant 13 /4 = 3 (plus 1) to have the numbers of days in the leap years The codes for the monts are JFM AMJ JAS OND 033...
1810
Sanjay Kumar
sanjay_6536
May 20, 2005 8:18 am
Hi All, This is an interesting problem! Just give a thought. Find the smallest whole number N such that if we divide it by 7, 9 and 11 leaves remainder 1, 2...
1811
Jens Gutzeit
620@...
May 20, 2005 8:27 am
How about 344? - Jens...
1812
Jens Gutzeit
620@...
May 20, 2005 8:31 am
Hi, you can also use other methods: http://rudy.ca/doomsday.html I think, that this one is easier to remember. - Jens...
1813
Ben Pridmore
zoom_zoom_ben
May 20, 2005 8:51 am
That one seems a lot more fiddly and complicated to me. I think it just depends on your mindset. The way I do it is more attuned to memorising lists of...
1814
Sanjay Kumar
sanjay_6536
May 20, 2005 9:23 am
Good work Jens. just send the procedure also. Sanjay ... [Non-text portions of this message have been removed]...
1815
ralf_laue
May 20, 2005 11:53 am
... and 11 leaves remainder 1, 2 and 3 respectively? The key for a solution is the Chinese Remainder Theorem (see ...
1816
Oleg Roitman
mentalmathan...
May 31, 2005 7:01 am
From The New York Times Newspaper. http://www.nytimes.com/2005/05/29/nyregion/thecity/29comp.html The Entertainer By BORIS FISHMAN Published: May 29, 2005 FOR...
1817
Mick Curtis
mick_curtis
Jun 1, 2005 4:30 pm
A 3 digit number times a 2 digit number. How many variations are there? The 2 digit number would not be 00 or 01. eg. 334 x 02 eg.044 x 83 OR 83 x 044 ...
1818
M Shravan Kumar
shrjbp
Jun 6, 2005 11:14 am
Well, this will be a gigantic task. This is much more difficult than the worlds best memory record (memorizing about 42,500 digits of pi). But when it comes...
1819
Michael Curtis
mick_curtis
Jun 6, 2005 1:55 pm
Like you say, it would be tedious. I am just interested in learning to use the Trachtenberg method well. But I like thinking about the memory approaches which ...
1820
Ian Docherty
icdocherty
Jun 6, 2005 4:07 pm
Why not start with 2 digit by 2 digit, that would only require 5050 different combinations to learn? By then you might find that it was easy enough to work out...
1821
George Lane
george972453
Jun 6, 2005 6:09 pm
An interesting approach, as two-by-two problems would lead to a speed advantage in four-by-twos, as you say. And even better when, if we assume no two-digit...
1822
issam khneisser
issamn_1
Jun 8, 2005 12:05 pm
My appraoch in two x two was based on arround 2812 different answers, and take a lot of time to get the 0.5 second reflex for an answer, u should use different...
1823
Oleg Roitman
mentalmathan...
Jun 9, 2005 8:22 am
Dear Carlos! I beg your pardon for my poor English! You can find this information in many places on the Internet including my site @ ...
1824
Oleg Roitman
mentalmathan...
Jun 9, 2005 8:22 am
Dear George! I beg your pardon for my poor English! Thank you very-very much for your message! I agree with what you wrote: "It seems, from what you say, that...
