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The Magic Cafe Forum Index » » Not very magical, still... » » How to lose $500 very quickly (0 Likes) Printer Friendly Version

Nosher
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Escapemaster-in-chief from all sorts of houdingplaces - Finnegans Wake
balducci
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Might that be the stupidest, least thought out, contest ever?

Some related links:

http://www.newdream.net/~sage/old/numbers/approxpi.htm

http://mathworld.wolfram.com/PiApproximations.html
Make America Great Again! - Trump in 2020 ... "We're a capitalistic society. I go into business, I don't make it, I go bankrupt. They're not going to bail me out. I've been on welfare and food stamps. Did anyone help me? No." - Craig T. Nelson, actor.
David Bilan
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Should have been a very short contest. Wish I'd have seen it when it first started.
Yes, I am a magician. No I did not make my hare (hair) disappear... it just took early retirement.
Nosher
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Quote:
On 2009-03-14 22:15, David Bilan wrote:
Should have been a very short contest. Wish I'd have seen it when it first started.


Yes. It's like finding a really good web app, reading all the way to the last line that says "We are no longer issuing Beta invites for this application, but you can submit your email to....".
Escapemaster-in-chief from all sorts of houdingplaces - Finnegans Wake
Magnus Eisengrim
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Quote:
On 2009-03-14 21:43, Nosher wrote:
http://www.kaidy.com/PiReward.htm


How did you find this? Presumably, the contest was intended to generate interest their products. How did the word get out?

BTW, the winning solution is interesting insofar as it looks original.He appears to have simply doubled a string of digits from the decimal expansion, multiplied by the appropriate power of 10, then put it over the denominator 2x10^whatever. This is at least more innovative than googling for the centuries-old better solutions.

John
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned;
The best lack all conviction, while the worst
Are full of passionate intensity.--Yeats
daffydoug
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You guys lost me a long time ago. When you say pi, I say apple or cherry?
The difficult must become easy, the easy beautiful and the beautiful magical.
balducci
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Quote:
On 2009-03-15 10:46, Magnus Eisengrim wrote:

BTW, the winning solution is interesting insofar as it looks original.He appears to have simply doubled a string of digits from the decimal expansion, multiplied by the appropriate power of 10, then put it over the denominator 2x10^whatever. This is at least more innovative than googling for the centuries-old better solutions.

John

When mathematicians look for fractional expansions of numbers like Pi, I think there is some implicit understanding that the number of digits in the terms appearing in the numerator and denominator should be less than the final number of correct digits in the decimal expansion of the fraction. Or something more or less like that.

Otherwise, why not just go with an entry of this sort:

314159265358979323846/100000000000000000000 ?

Of course, that's why I think the contest was pretty ill thought out.
Make America Great Again! - Trump in 2020 ... "We're a capitalistic society. I go into business, I don't make it, I go bankrupt. They're not going to bail me out. I've been on welfare and food stamps. Did anyone help me? No." - Craig T. Nelson, actor.
Magnus Eisengrim
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Quote:
On 2009-03-15 14:43, balducci wrote:
Quote:
On 2009-03-15 10:46, Magnus Eisengrim wrote:

BTW, the winning solution is interesting insofar as it looks original.He appears to have simply doubled a string of digits from the decimal expansion, multiplied by the appropriate power of 10, then put it over the denominator 2x10^whatever. This is at least more innovative than googling for the centuries-old better solutions.

John

When mathematicians look for fractional expansions of numbers like Pi, I think there is some implicit understanding that the number of digits in the terms appearing in the numerator and denominator should be less than the final number of correct digits in the decimal expansion of the fraction. Or something more or less like that.

Otherwise, why not just go with an entry of this sort:

314159265358979323846/100000000000000000000 ?

Of course, that's why I think the contest was pretty ill thought out.


That's my point. He did this (gamewise) clever ploy, but added the cute touch of doubling numerator and denominator at a place where the numerator rounded up, so that he ended up in lowest terms. Mathematically a trivial move, but in terms of the competition, it was ok.

Being contaminated by education, my first thoughts went to convergents of a continued fraction. But that's why I don't win contests like this.

John
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned;
The best lack all conviction, while the worst
Are full of passionate intensity.--Yeats
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