I get an idea for MENTAL CALCULATORS, I think will be very good to have a web site for mental calculators where there run some programs and calculators compete...
Freddy
freddy03032@...
Apr 4, 2009 8:41 am
3012
Hi All, I think this would be a great move. We have a file section available within the group, can we add such programs too? If not, could we set up such a...
I believe that I could make a site like this (and a lot of you mathematics guys could as well, I have no doubt). I would want to keep it proprietary: not open...
Good afternoon all, When the only goal for the website is finding out who is the fastest calculator, my reaction is short and clear: no thank you very much. My...
Hi there. Some of the factorisation problems are randomly generated, others are deliberately designed. The ones I set myself for practice are randomly...
Well, Willem, het spijt mij, but I don't agree. Most championships have to do with being quickest, longest, strongest, or whatever. Of course nobody should...
Respectfully, Willem, let's not split the thread. This thread is about designing and implementing a mental calculation competition site. It would be productive...
Good morning Bernhard, He, that's funny, I recognise "meine Muttersprache, sehr schön´. Indeed, and I realise, all kinds of sports have a quantitative...
@ mike: well, the descriptions are only in German and Swedish, but of course one can do the calculating in any language... :-) The links on the upper part are...
Thank you for that. I got excited about trainings lager but there was no free beer. For my part, I am looking at sites which have online tests and thinking...
I am wondering how the Pegasus file should be used as a model for making random tests. Is it that the number of digits before a decimal place and after a...
Hi Mike, The set-up I've put together within 'Pegasus' is designed to be adaptable - take the bits you need & junk the rest. Decimal additions (as you have...
Dear calculator friends, It is always agreeable to see his opinion confirmed. I discussed the matter more times with Gert Mittring, who is a doctor in...
I was reading about a mathematician named Xi, I think, who apparently made the formula which the stock markets used to calculate risk. Some might call the use...
Dear Calculators, For the 8 May weekend I organised a MC weekend. My esteemed guests were Dr.Dr. Gert Mittring, Jan van Koningsveld and Dr. Andrew Robertshaw,...
Respected Mr Bouman I did not understand what is this chinese remainder theorm but I am very much interested to learn the same. Can you give 1 or 2 simple...
... Before asking other people for help, I would recommend to do your homework: Option 1: Lookup "Chinese Remainder Theorem" at Wikipedia Option 2: Search for...
Hello everyone, You may remember a thread where Freddy said that an online mental math competition might be a good idea. At the time, I was looking for a web...
Dear Calculator friends, After my friends Andy, Gert and Jan went home, I found this "explanation" of the chinese remainder theorem, which to me is indeed...
Hi Willem! Ok, Simulateous congruencies are something you do know - a "congruence" is a modulo. So if I ask what is the remainder when 67 is divded by 12, I...
Hi Andy, Your reaction is printed and will be studied. I do not know where the CRT is used for, anyhow in the case of the remainder division it was crystal...
Dear Mr. Manchali, As I am not very sure if my message enters in your mailbox I make a cpy for Mental Calculation. Of course I am minterested if my anwer meets...
Hi folks, It's been a while since I posted anything to the group, so I thought I'd out something down on this subject. Willem's '11 test' is very much akin...
Hello fellow calculators, Would anyone be kind enough to in detail (step by step) show how to calculate the square root of this mentally as my algorithm...
Dear Josh, Of course you get help! Ok sqrt 100044. a.. the nearest square under your number is 316²= 99856. b.. Subtract this of 100044= 188 c.. 188/2=94÷ =...
Dear Willem Bouman, This is the most important response I have ever recieved for I finally understand the method and the logic behind it. I am hooked and have...
Hello everyone, re: 188/2=94÷ = 2 r 32, as we later on make further subtractions 3r1 would bring us in trouble Is there a 'for dummies' version of this...
Hi Josh, Willem, and... well, everyone really. The number 100,044 gives quite a good example of a technique I sometimes use to find square roots. Willem's...
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