Please don't get me wrong: I know how to extract a cube root, but it ends half way to eight digits. As it seems there must be a way to get to eight digits. Jan...
4636
A Garg
amitkg78
May 1, 2012 8:09 pm
Dear Jan, Â Â Â Â Â Â Simplifying complicated calculations for our mental calculation purpose gets quite involved when we go to cube root or higher roots. I...
4637
office
werbeka
May 2, 2012 8:50 am
I fully agree with Jan. A cube root definitely is a mathematical operation and has nothing to do with MC. Best wishes werbeka/Bernhard Jan van Koningsveld...
4638
Chuck Bean
nukandpong
May 2, 2012 8:51 am
I wish there were more competitions for more difficult calculations. I don't have the natural talent or interest to do calculations extremely quickly like...
4639
office
werbeka
May 2, 2012 10:57 am
I have full understanding for people who want to solve intricate mathmatical puzzles - but do that in a group, which has that as aim. Don't mix it up with ...
4640
Sel€ çuk Soner Akg€...
ssakgul
May 2, 2012 12:20 pm
I already have a method which is very similar to Square Root method. Who is good at Square Root, s/he is good at Cube Root, too. But it has some modification...
4641
AWAP Bouman
awapbouman
May 2, 2012 12:32 pm
Dear fellow calculators, An interesting remark of Bernard: Sudoku. It was introduced in 2006 in MSO London. As this is in my opinion no Mental calculation I...
4642
AWAP Bouman
awapbouman
May 2, 2012 12:32 pm
Dear Selçuk, May I be the special person you are looking after? Best regards, Willem Bouman ... From: Selçuk Soner Akgül To:...
4643
Sel€ çuk Soner Akg€...
ssakgul
May 2, 2012 1:34 pm
You are already a special person Mr. Bouman, you know. Give me some time to explain it in a clean document. I am not ready. I've been working for Rubik's Cube...
4644
A Garg
amitkg78
May 2, 2012 1:34 pm
I strongly feel cuberoot falls in the area of applied mental calculation as it only involves mathematical computation without detailed understanding of...
4645
Sel€ ¢Ã§uk Soner Akg€...
ssakgul
May 2, 2012 5:27 pm
Yes, it is used without maths. There was a file in the Files section of the gruop, named CCWN.zip or CCWN.rar (Calendar Calculation Without Numbers) Download...
4646
Sel€ çuk Soner Akg€...
ssakgul
May 2, 2012 5:27 pm
You can at most ~30-40% points with this method I think. The time is not enough to find all 8 digits for all 10 questions. ... * * *Selçuk Soner Akgül* ...
4647
A Garg
amitkg78
May 2, 2012 6:16 pm
Dear Akgul, Â Â Â Â Â Â Â Â Â I feel that one can score 75% points with this method based on practice (get six digits correct within 1.5 minutes per cube...
4648
Ralf Laue
ralf_laue
May 2, 2012 7:26 pm
... Dear Jan, I am almost sure that currently no other group member can solve a cube root to 8 digits. I would even not be surprised if 4 valid numbers would ...
4649
AWAP Bouman
awapbouman
May 2, 2012 7:48 pm
Dear fellow calculators, there is going a little discussion: very well, this is a MC discussion list, about mathematics and arithmetics. ASnd what do I see in...
4650
Jan van Koningsveld
jan_van_koni...
May 2, 2012 8:29 pm
Dear all, dear Amit, thank you for having this discussion. Special thanks to Amit who suggests ways to solve the problem. Very much appreciated. I support...
4651
Nodas Boukovalas
nodden_1984_...
May 3, 2012 6:25 am
Hello Mr. Akgul, I follow the yahoo MC group and saw your message. May I kindly request a password for the CCWN.zip file. Thanks a lot for all your work, I...
4652
Gerald Newport
wholphin48
May 3, 2012 6:32 am
Interesting discussion. I find the cube root to be too much more of the same. We already have a square root event. I hoped the new task would involve a...
4653
rob f
rob221b
May 3, 2012 6:44 am
... From: Ralf Laue <info@...> To: MentalCalculation@yahoogroups.com Cc: Sent: Wednesday, 2 May 2012, 15:22 Subject: [Mental Calculation] Re:...
4654
A Garg
amitkg78
May 3, 2012 12:48 pm
Dear Jan and others,         I will prefer to send solved example with numbers using algorithm I overall described discretely rather than posting it...
4655
AWAP Bouman
awapbouman
May 3, 2012 2:38 pm
To Rob F, (whom it may be). Well this is an impressive answer. Undoubtedly this is algebra. But is it also Mental Calculation? The problem I presume is what...
4656
Robert Loggins
RDLoggins
May 3, 2012 4:45 pm
Please send me your cube root solution examples. Thank you logdog@... From: A Garg Sent: Thursday, May 03, 2012 8:46 AM To:...
4657
office
werbeka
May 4, 2012 8:33 am
Goeden avond (which means good evening)! Well, Willem, it is NOT Mental Calculation, impressive answers, or not. So, you are absolutely right. The question is,...
4658
Sel€ ¢Ã§uk Soner Akg€...
ssakgul
May 4, 2012 10:12 am
Calendar Calculation is NOT mental calculation, too. It is memory only. The methods using all are created with algebra. MC is the answer of the question "how...
4659
AWAP Bouman
awapbouman
May 4, 2012 5:09 pm
Well dear Selçuk, From 2008 I remember Prof. Beutelspacher who said: "calendar calculation is very simple modulo 7 calcualtion". In fact it is a "production"-...
4660
Miles Forster
m3o@...
May 4, 2012 6:03 pm
I'm sorry, but how are cube roots not mental calculation? You *calculate* the roots *mentally* using nothing but your *mind*, therefore it's mental...
4661
Gerald Newport
wholphin48
May 5, 2012 5:04 am
Miles, I think you are technically correct. I also think there is concern that computation of square roots needs knowledge that is not as common as that for...
4662
rob221b
May 5, 2012 2:32 pm
Of course mentally calculating cube roots is mental calculation. Devising methods is an import aspect of mental calculation, as any real mental calculator will...
4663
Jan van Koningsveld
jan_van_koni...
May 5, 2012 5:27 pm
To the REAL Mental Calculators: The world's best marathon runner is told the following: To win the next marathon, you will have to find the road/way yourself. ...
4664
A Garg
amitkg78
May 5, 2012 8:43 pm
Dear Jan, For simplest mathematical calculation including multiplication or square root or calendar calculation, there are shortcuts, different...
