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Old 2011-06-09, 08:03   #1
davieddy
 
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Default Suggestions for the "Classic Summary" page

Some of us are very grateful to George for reviving this.

I find the "expected new primes" column by far the simplest
way of guessing where/when M48 might be found.

1) Quoting George: "Please use sparingly: page takes half a minute
to load and hammers the database".
Yep. I've noticed that it works things out anew on each visit.
An hourly update as per "Status summary" page would suit me fine,
and circumvent these problems.

2) The ranges (long obsolete) could be rounded to the nearest 5M
with little change to the numbers involved.

3) The penultimate 2 columns are surely best consigned to antiquity!

David

PS Milestone reached:

Expected new primes between 50M and 60M now reduced to 0.391
(same as between 60M and 70M)

Last fiddled with by davieddy on 2011-06-09 at 08:28
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Old 2011-06-09, 12:48   #2
Uncwilly
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Quote:
Originally Posted by davieddy View Post
1) Quoting George: "Please use sparingly: page takes half a minute to load and hammers the database".
Yep. I've noticed that it works things out anew on each visit. An hourly update as per "Status summary" page would suit me fine, and circumvent these problems.
I have suggested that, or once a day and provide on it the time run. Same thing with the standard millstones page.
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Old 2011-06-09, 13:22   #3
davieddy
 
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Quote:
Originally Posted by Uncwilly View Post
Same thing with the standard millstones page.
I hope "millstones"(sic) was intentional as opposed to a typo
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Old 2011-06-10, 01:45   #4
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Quote:
Originally Posted by davieddy View Post
I hope "millstones"(sic) was intentional as opposed to a typo
Quite so.
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Old 2011-06-10, 12:27   #5
davieddy
 
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Default Millstones

Quote:
Originally Posted by Uncwilly View Post
Quite so.
If the 2000+ milestones were placed randomly* along
Route 66
what would the be the "standard error" of your estimation of the distance
you had travelled from Chicago to LA?

David

*Still ordered numerically of course.

Last fiddled with by davieddy on 2011-06-10 at 12:38
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Old 2011-06-10, 18:47   #6
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We need some kind of distribution....otherwise, all the milestones were all placed within an inch of where they were supposed to be...randomly, of course...with standard deviation 1/3 inch....

Let's try for a uniform distribution of the stones, instead...that might be more interesting...
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Old 2011-06-10, 19:46   #7
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Quote:
Originally Posted by Christenson View Post
We need some kind of distribution....otherwise, all the milestones were all placed within an inch of where they were supposed to be...randomly, of course...with standard deviation 1/3 inch....

Let's try for a uniform distribution of the stones, instead...that might be more interesting...
This is horrible. Forgotten how many inches in a mile.
Call it i.

Toss an i-sided die (singular of dice) each inch of the way
from Chicago to LA. Whenever you throw i, put down a millstone
and number it one more than the previous one.

The number of stones will approximate the number of miles to LA.

I know. I should stick to writing songs.

David

Last fiddled with by davieddy on 2011-06-10 at 20:18
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Old 2011-06-10, 22:42   #8
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Quote:
Originally Posted by davieddy View Post
This is horrible. Forgotten how many inches in a mile.
Call it i.
Then i = (5280 feet/mile)(12 inches/foot) = 63,360 inches/mile. I actually learned this by heart after a couple of weeks of physics (the course, not a series of high colonics...)

Quote:
Originally Posted by davieddy
Toss an i-sided die
Which would, for all intents and purposes, be a marble. Though it might make a game of Dungeons and Dragons that much more interesting.
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Old 2011-06-11, 00:05   #9
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Quote:
Originally Posted by davieddy View Post
If the 2000+ milestones were placed randomly*
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Old 2011-06-11, 06:36   #10
davieddy
 
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Default REFEREE!

That was unfair Uncle!

YOU mentioned the "millstone" page.
I was trying to make the point that taking the
known Mersenne primes as "milestones" was about
as useful for measuring GIMPS progress as randomly placed
actual milestones. then threw in a simple math question.

As for the thread title, I await further comments on
my suggestions. I assume George is away ATM.
Must be time for another millstone

David
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Old 2011-06-11, 09:18   #11
davieddy
 
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Quote:
Originally Posted by Christenson View Post
We need some kind of distribution....otherwise, all the milestones were all placed within an inch of where they were supposed to be...randomly, of course...with standard deviation 1/3 inch....

Let's try for a uniform distribution of the stones, instead...that might be more interesting...
Got me thinking there.
This deserves another thread (as uncwilly so tactfully suggested).
Where to put it?
Oh yes - the "sin bin", "Misc Math". At least it will probably stay put!*

Await further developments.

David

*I hope it won't get relegated to "useless posts by...."
in the Soap Box :)

PS If you say pick a number between 0 and 1 at random,
what "distribution" is the implied/default assumption?

Last fiddled with by davieddy on 2011-06-11 at 09:40
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