Regarding Registration

[aniket]

Dear Administrator,

My friend wants to register for Chromforum, but is unable to do so, as the form asks to mention the value of pi to 5 digits, even if it the value is put, it is saying the VIP code is wrong? What is this VIP code??

When i registered 2 years back, there was no such thing as VIP code?? Why now i t has come up??

Thanking You,

Aniket

[tom jupille]

The "VIP code" was added a few months ago to combat automated postings of spam and pornography on the site. It had gotten to the point where it was a constant battle checking new registrations and deleting/banning the obvious junk. That problem has now disappeared.

I think your friend is misinterpreting the instructions. It does not call for the value of pi to 5 digits, but the value of pi to 5 decimal places. That is 6 digits or(since you must include the decimal point) a total of 7 characters.

If the problems continue, have your friend e-mail me privately, and I'll activate the account directly.

[aniket]

Dear tom ..thank u for your replay...as per your suggestion i have tried many times to register chromoforum but still failig to enter the exact pi value so please help me for registration..can u mail me on below mentioned mail.
thanking you.



yours

Sadanand R.mallurwar
Research Associate,Drug Metabolism & Pharmacokinetics.
Nicholas Piramal Research Centre,Goregaon(E)
Mumbai (maharashtra)

[DR]

I just tried it, worked fine.
pi 3.1416

if you show more places, the rounding error goes away...

[tom jupille]

Sadanand,

Private e-mail sent.

[Schmitty]

My math teacher always told me to use 3.00000. No wonder I never did well

[HW Mueller]

Your teacher must have told you something about a pie, not pi.

[chromatographer1]

My math teacher in grade school told me to use twenty-two sevenths.

Closer than 3, but understood by someone who could understand simple fractions (at least I think I did) and did not have a calculator.

Actually I did have one, but it was called a slide rule. And the batteries never ran down or needed replacement. (that or I never found the storage compartment for them)

Rod

[tom jupille]

Could be worse. In 1897, the (US) Indiana State Legistlature passed a bill that would have decreed pi to be equal to 3.2 (that would have made for bumpy rides on any wheels manufactured in Indiana). Fortunately, wiser head prevailed in the the Indiana state Senate, and it was never passed into law.

http://www.agecon.purdue.edu/crd/Localg ... _Story.htm

[jzt]

my mother made me memorize 100 decimal places of pi when I was in 5th grade. she heard this was a good way to improve memories in children. I did that. but the numbers slowly disappeared over the years. I just tried again and only got to the 30th place, and #26 was wrong. I guess this is an indication my memory is fading.

I've seen a high scholl math teach posted the pi value right above the whiteboard. I wonder if that teacher remembers up to 100 decimal places or assigns it as bonus homework.

[Uwe Neue]

I promise to do the approximation 22/7 to as many digits that somebody is willing to pay me for. Let me be cheap: a dime a digit...

[chromatographer1]

22 sevenths isn't a bad approximation.

The error is only 1 part in 2500, and it doesn't require you to memorize 100 digits.

For you English joggers, that means your jog around a mile long circular track would only be long by 2 ft if the distance was calculated using twenty-two sevenths instead of pi.

happy jogging !

Rod

[Jim Shen]

You may find this interesting. There is a JAVA applet on the net that can calculate pi to 10 millions places in precision. CPU overclockers often use this as a CPU load application to test stability of the CPU. Here is a linke for the curious.[/url]. There is also a standalone application called superPI which essentially does the same thing.

[Rande]

Question:
What do you get if you divide the circumference of a bowl of ice cream by its diameter?

Answer:

Pi a'la mode.

(sorry - I couldn't resist)

[tom jupille]

I was just sipping my morning coffee as I was reading that -- it came back up my nose!