Super pi days

[Chris Maunder]

Hey - don't confuse us mathematicians with those statisticians

cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

[Chris Maunder]

If the US wants to biggie-size April then it's not something that would surprise me

cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

[krumia]

In my workplace, we use yyyymmdd for comments, file naming, etc.. it's damn easy to sort. I have always felt that mmddyy is just irrational. You don't say a player finished a race in 23 mins 45 secs 1 hour. That's just ridiculous.

Peace, ye fat guts!

[spd69]

Perhaps what we need is to use the 'Time Police'. They could rigorously enforce stamdards across the world. Nay even acroos TIME itself. Question is do we A) Create the Time Police ourselves or B) Wait for their creation in the future. With Time Travel they cna travel back to our 'time' to Retro Enforce Time Standards Regrads The Retro-Enforcer

[jsc42]

Read the discussions on date micro formats for HTML5 (sorry, I haven't got a link - I am sure that another CPian will be able to find some). Genealogies is cited as a difficult case as the dates go before 1752. The recommendation (in the microformats discussions) is that you still use the Gregorian dates, but that would be very confusing as the historical dates were Julian (which I am sure is what most genealogy courses would use). Also, genealogies hit one of the other date format 'gotchas': approximations; how do you represent 'sometime probably in September between 4BC and 1AD'?

[jsc42]

krumia wrote:

You don't say a player finished a race in 23 mins 45 secs 1 hour

No you don't. But it is more common to say "It is ten past eleven", than to say "It is 11 o'clock plus ten minutes". Admittedly, "It is 11:10" is quicker. Posted just after ten past eleven, GMT.

[Darren Pruitt]

Pi is Wrong! :) Couldn't resist...

[Bob1000]

Obviously this only occurs in the US, in Europe with dd/mm/yy we get any early pi on March the 14th in 2015 So guess you have to refer to 3/14/15 as American pie :)

[austin hamman]

07/20/2069 19:37:33 will be unix timestamp 3141592653 other notable timestamps: time of the beast (unix timestamp 666) was 12/31/1969 19:11:06 Euler time (unix timestamp 2718281828) will be 02/20/2056 09:17:08 AM avagadro's time overflows a 64 bit int... so don't hold your breath and PHI time (unix timestamp 1618033988) is 04/10/2021 01:53:08 AM

[satovey]

I first convert the Gregorian date to the Julian Day Count, make the calculated adjustment, then convert back to the Gregorian or Julian calendar. While this may seem an extra step in the process, it does have two advantages. 1. The dates remain in their numerical sequence and thus allow for accurate sorting. 2. Regardless of the calendar you convert back to, Gregorian or Julian, the date will be accurate within a 12 hour period. The one draw back to the JDC is that the JDC changes at noon rather than midnight. This could be rectified by creating a new day count that starts at midnight rather than noon. Scott A. Tovey

[satovey]

Bob1000 wrote:

Obviously this only occurs in the US, in Europe with dd/mm/yy
we get any early pi on March the 14th in 2015
 
So guess you have to refer to 3/14/15 as American pie

Here in the US, most of us grow up using the dd/mm/yy format. The only ones who use that other format are the ones who need people to think that they are smart. They're insecure because of the increasing forgetfulness that they have been experiencing. Do you think we should tell them that's called "getting old"? Just one thing: What were we talking about? :laugh: Scott

[Mark Whybird]

More importantly, will τ be what is taught in schools by 6/28/31 8:53:07.179586... (in that crazy US date system) http://tauday.com[^]

[KP Lee]

In a few years, maybe we will get ticks in 1 tick increments, but right now, you're SOL if you are using SQL, but my C# apps can calculate in millisecond increments now, so the number can be one more digit long right now. What is interesting is PI shows up twice in the same year about a month and a half apart. (Yes, your format switch and 16 years difference did throw me at first too. A different format switch gets the month and a half) Also, that's 16 years, 1 month, and 1 day later. So, is the next PI series some 1129+ years from now? (What am I THINKING! It's only 100 years away from these numbers again! What I was first thinking was that a 4 digit year gets 2 places more in accuracy. 3141/5/9... twice for m/d and d/m formats.) Is there some C# option that tells datetime to increment in approximately 10,000 tick increments now? Can that be set differently?

[krumia]

Quote:

But it is more common to say "It is ten past eleven"

It's more common easy for verbal communication. The point is, most of the people admit that ddmmyy format is quicker/easier than mmddyy. But can anyone point out the advantage of mmddyy over ddmmyy?

Peace, ye fat guts!

[PHLIPH]

MMM, I think we need a more absolute time scale - starting from the beginning of the universe. But we can't forget that the time-scale units must include constant-less conversion into units of furlongs per fortnight and of course referenced to the speed of light. Something like 1 tick = pi*D/C where "D" is the current radius of the universe in parsecs and "C" is the speed of light expressed in furlongs/fortnight. Using a time-scale such as this should simplify both web programming and the math in a unified field theory.

[Mark AJA]

But only in America as most other countries only have 12 months in a year.