Survey posted 2000-03-15 16:54 by Andy.

Contribute ideas to surveys by sending a mail to survey@ticalc.org.

I'm not much on memorizing stuff. I let my calculator do it because I'm too lazy.

BTW, first comment (if my cache is not lying)

DOH !

HAHAH HAHAHAHAHHAHAHAHAHHAHH HAHAAHAHHAHAHAHAHAHA

Well don't you worry it happens to me like a lot of times before.

Also honestly can anyone really remembers PI to the 50 digit? you say you can remember 251 or more? no come on be honest here.

I seriously, honestly know pi to the 60th digit. Ask Mike Knapp - I recited it for him when we met a month or so ago. Email is knapp@parrett.net.

--BlueCalx

i memorized 55 in 10 minutes

So, you are wondering if anyone can memorize to 50? All I have relating to pi anywhere near me is NOTHING. Here it goes:
3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 ...

Ha!

I can top that. NOTHING related to pi around me and...

3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899...

Top that! (80 places)

I know 3.14159 26535 89793 23846 26433 83279 50288 41 ... 41! It always stops at the 41...

BTW, if you want to remove ALL ads off the internet, just download webwasher! (www.webwasher.com)

he he, you made a mistake. last week, I was getting bored in my math class, and figured I'd memorize ¹ since the guy who sits next to me knew 100+ digits. lets see how I do.
3.141592653589793238462643383271502 8841919716939937510582097494459
that's 64 decimal places. I wrote it into my calculator to about a hundred places, does anyone know a website where I can find it past 100?

now I feel kind of dumb, because after I posted that, I went to the webpage of the pi search thing, and he has ¹ written to the exact same number of decimal places, so it looks like I coppied. except that his is wrong. What he has is:
3.14159265358979323846264338327 (((9))) 50288419716939937510582097494459
that nine should be a one. HA. Atl least, I think it should be. I learned it off one website (not that one) and from two friends, and they all thought it was a one...

now I feal really dumb, because it appears that I was wrong. that really should be a 9, (sob) and where I wrote 419197169... it's only 4197169... I'm mad, I wanted to be right. Oh well, I'll just paste the 1st 1000 in and pretend that I recited them from my memory.
3.

1415926535 8979323846 2643383279 5028841971 6939937510
5820974944 5923078164 0628620899 8628034825 3421170679
8214808651 3282306647 0938446095 5058223172 5359408128
4811174502 8410270193 8521105559 6446229489 5493038196
4428810975 6659334461 2847564823 3786783165 2712019091
4564856692 3460348610 4543266482 1339360726 0249141273
7245870066 0631558817 4881520920 9628292540 9171536436
7892590360 0113305305 4882046652 1384146951 9415116094
3305727036 5759591953 0921861173 8193261179 3105118548
0744623799 6274956735 1885752724 8912279381 8301194912
9833673362 4406566430 8602139494 6395224737 1907021798
6094370277 0539217176 2931767523 8467481846 7669405132
0005681271 4526356082 7785771342 7577896091 7363717872
1468440901 2249534301 4654958537 1050792279 6892589235
4201995611 2129021960 8640344181 5981362977 4771309960
5187072113 4999999837 2978049951 0597317328 1609631859
5024459455 3469083026 4252230825 3344685035 2619311881
7101000313 7838752886 5875332083 8142061717 7669147303
5982534904 2875546873 1159562863 8823537875 9375195778
1857780532 1712268066 1300192787 6611195909 2164201989

you have way too much free time on your hands...

PROGRAM:PI
:1->A
:.5->B
:2^(1/2)/2->C
:.25->D
:Lbl A
:A->E
:2*B->B
:(A+C)/2->A
:(C*E)^(1/2)->C
:D-(B*(A-E)^2)->D
:(A+C)^2/(4*D)->x
:disp x
:goto A

4 loops of the above program will calc pi to the display accuracy. I don't know who discovered this algorithm.

I think it was Gauss who discovered this algorithm.

Hey, if you don't know where to find Project Gutenburg on the Web, I have a text file that has Pi to the...1,254,451 th place. I also have the "32nd Mersenne Prime" number, which is 227,883 digits long..email me at Quigkj@aol.com or do a search for Project Gutenburg, where I got 'em from.

go to the website for millions of digits of e and square roots of composite numbers. There's no pi, but other numbers deserve it too!

my god , 2 million digits of e... it's taking a lot of time with my 33.6 modem conection....

this blows the mind...
How long would it take to download a googleplex (1 with a google zeros after it) with a 56kps modem?

Well, a googleplex would take (10^100)+1 bytes, which translates into approx. 9.53674*10^93 megabytes. On a 56kps modem operating at 56kps (which they rarely do) with no downtime, it would take:

2.9065460119048*10^93 minutes
4.8440500198413*10^91 hours
2.0183583416005*10^90 days
5.5259613818637*10^87 years (counting leap years)

However, with a DSL line running at 1.5 megabytes per second, it would only take 2.0146734204712*10^86 years, so you should get a DSL line.

That is where compression comes in (a zip file)

In your computations, I think you're thinking of just a google, which equals 10^100. Amazingly, those times are what would be required just to view the number googleplex itself in non-exponential form.

Another thing- how can a 56k modem download 9.53674*10^93 = 2.9065460119048*10^93 minutes? They cannot get 3.28 megs per second. You need to check your numbers.

56K modems have built-in compression, which should help with the times.

That's it! Let's talk about e!!! :)
e is: 2.71828182845904523536028...
Pi is too "casual", why not learn e instead?

e is easier to calculate than pi is
e=1/(0!)+1/(1!)+1/(2!)+1/(3!).....
on the 89, press [F3] [4] 1 / (x!), x, 0, [infinity] )

press [diamond] [divide] to get [!]

You can do that with pi too:
4*sum((i^2n)/(2n+1),n,0,[infinaty]) [on 89]
it won't give you the pi symbol but i think its right.
Instead of infinaty, you can put a BIG number and get apx pi. Put in 10^x and you get about x-1 digits correct :) Its also VERY slow.

put in 4 arctan 1
(press [4] [diamond] [tan-1] [1)])
That will give you the symbol pi

Here is yet another way to get pi (in symbol form on the 89)

-ln(-1)*i

Make sure your calculaor is in Radian mode

yet another way

lim (n*sin(180/n))

as n goes to infinity

only works in degree mode

do you know why that is?

it is because e^pi*i+1=0
that's one of Eulers formula's, he considered those to be the 5 most important numbers and he put them in one equation

You mean e^(pi*i)-1 = 0

I meant! e^(pi*i)+1 = 0

got it right the second time

Go to THIS link for the first 15000 digits of the square root of 4.

I can go as high as you want, just provide me with a way to count which digit i'm on.

I hear they have the same thing for 9 and 16

This guy's pretty smart. I wonder how he ever figured that out. I personally wouldn't type that many zeros (even with copy and paste). Who thinks there should be a rule on TICalc about not letting 1st-graders get memberships?

You don't need to type all of those zeros, you just have to write a short program that creates a text file and outputs the string "2.", followed by a for loop which adds the character '0'.

void main(){
ofstream root2;
root2.open("sqrt2.txt");
root2 << "2.";
for(int x = 0; x < 100000000; ++x)
{ root2 << '0'; }
root2.close();}

Certainly a lot quicker than actually typing those 100000000 zeros. Simple enough?

Thats easy! sqrt(4)=2.000000000000000000000000000...

I could post millions of digits if I really wanted to.

this website(the URL above) has the first 1.25 million of the some billion that have been figured out. Does anyone know where to get billions of digits.

dtc0405

go to the web site above

they have pi to 400 million digits there

Go to the website above for up to 2.5 million digits. You can even search for numbers (like your phone number) in the first 10 million digits.

thanks for that ad removal thing, I hate ads.

Thanks for the ad removal. all I know of pi is 3.14159265358973.

isn't that 897*9*3?

correct you are. i'll recite as much pi as i can:

3.
1415926535 8979323846 2643383279 5028841971 6939937510 58209
there we have it, 55 digits