What is the final digit of Pi?
458537
The final digit of Pi is unknown, since the number is infinitessimally long.
267044
The square root of pi is about 1.772. So the negative square root would be -1.772. I don't believe infinity has a square root, though.
256272
Recently, the highest digit of PI was calculated.  You should probably do a google search for the articles.  If you need to do slides on this, you could probably start out by discussing what Pi is, then who came up with the equation for Pi, then continue discussing what the highest digit of Pi is.  Also, there is an annual contest held where people try to recite the digits of Pi.  Recently, a high school student placed like 8th in the world.\n\nHere is a link to the high school student who recited the digits:\n\nhttp://www.msnbc.msn.com/id/11858760/
19376
pi has been determined to be endless but i know 31 places after the decimal 3.1415926535897932384626433832795
942660
Back in my day as a budding mathematician (1960's and 70's) 1 place precision meant that you could only 'trust' the answer to one digit.\n\nFor example, 'What is 132 / 12?'  The answer is 11.  But using one place precision, it would be 'about 10'.  \n\nAn alternate definition would be to be accurate to 1 decimal place.  What is 'pi'.  The answer is 3.14159...  However, to only one decimal place it is '3.1'
155180
No, it's an infinite decimal sequence (as far as we know) so far Pi has over 400,000,000 digits, you can see them over on this page, http://www.hepl.phys.nagoya-u.ac.jp/docs/pif500.text.gz
421226
Ha!  I just happen to know pi to 60 decimal places off the top of my head.  \n3.141592653589793238462643383279502884197169399375105820974944
885437
The last two digits are '25'. \n\n(This is the same for ANY integer power of 5 greater than 1).\n\nThe calculator won't give you the answer since it is not accurate enough.
1040477
Pi to one MILLION decimal places\n3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679  \n  8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196  \n  4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273  \n  724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609...\n\nOkay, wait a minute.\nYou guys are killing my server.\nI could have a million digits of Pi listed here, and it would've really been great. \nSo, I'm going to hide all those nutty digits, and offer you something BETTER.\nLet O be the centre, r be the radius and C be the circumference of a circle.\nThe constant pi, denoted , is a real number defined as the ratio of a circle's circumference  to its diameter , \nIt is also sometimes called Archimedes' constant or Ludolph's constant. Pi's digits have many interesting properties, although not very much is known about their analytic properties. Spigot (Rabinowitz and Wagon 1995; Arndt and Haenel 2001; Borwein and Bailey 2003, pp. 140-141) and digit-extraction algorithms (the BBP formula) are known for pi.\nPi's continued fraction is given by [3, 7, 15, 1, 292, 1, 1, 1, ...] (Sloane's A001203). Its Engel expansion is 1, 1, 1, 8, 8, 17, 19, 300, 1991, 2492, ... (Sloane's A006784). \n\n Pi is known to be irrational (Lambert 1761; Legendre 1794; Hermite 1873; Nagell 1951; Niven 1956; Struik 1969; Königsberger 1990; Schröder 1993; Stevens 1999; Borwein and Bailey 2003, pp. 139-140). In 1794, Legendre  also proved that  is irrational (Wells 1986, p. 76). Pi is also transcendental (Lindemann 1882). An immediate consequence of Lindemann's proof of the transcendence of  pi also proved that the geometric problem of antiquity known as circle squaring is impossible. A simplified, but still difficult, version of Lindemann's proof is given by Klein (1955). \nIt is also known that  pi is not a Liouville number (Mahler 1953), but it is not known if  pi is normal to any base (Stoneham 1970). It is not known if pi+e, pi/e or  natural log of pi are irrational. However, it is known that they cannot satisfy any polynomial equation of degree  less than or equal to 8 with integer coefficients of average size 10 raised to the power 9. Pi crops up in all sorts of unexpected places in mathematics besides circles and spheres. For example, it occurs in the normalization of the normal distribution, in the distribution of primes, in the construction of numbers which are very close to integers (the Ramanujan constant), and in the probability that a pin dropped on a set of parallel lines intersects a line (Buffon's needle problem). Pi also appears as the average ratio of the actual length and the direct distance between source and mouth in a meandering river (Stølum 1996, Singh 1997). \n\nA brief history of notation for pi is given by Castellanos (1988).Pi is sometimes known as Ludolph's constant after Ludolph van Ceulen (1539-1610), a Dutch  calculator. The symbol  was first used by Welsh mathematician William Jones  in 1706, and subsequently adopted by Euler . In Measurement of a Circle, Archimedes  (ca. 225 BC ) obtained the first rigorous approximation by inscribing and circumscribing  6* 2^n-gons on a circle using the Archimedes algorithm. Using  n=4 (a 96-gon), Archimedes  obtained that 3+ 10/71 < pi < 3+ 1/7......(Wells 1986, p. 49; Shanks 1993, p. 140; Borwein et al. 2004, pp. 1-3). \n\nThe Bible contains two references (I Kings 7:23 and Chronicles 4:2) which give a value of 3 for  pi (Wells 1986, p. 48). It should be mentioned, however, that both instances refer to a value obtained from physical measurements and, as such, are probably well within the bounds of experimental uncertainty. I Kings 7:23 states, "Also he made a molten sea of ten cubits from brim to brim, round in compass, and fiv
195921
Pi is 3.14159265 and is the ratio of the circumference of a circle to its diameter\n\nPhi is 1.61803399 and is known as the golden ratio, evident in everything from rose petals, the building of the pyramids and the painting of the mona lisa.
97617
3.14159\nThe square root of (pizza) pie.
101969
Hi, nice question. The 80th digit of pi is 9. \n\nDo you want more? Here is 1st 800 digits. The following link has 1st 50,000. Visit and count yourself:\n\n3.1415926535897932384626433\n8327950288419716939937510\n5820974944592307816406286\n2089986280348253421170679\n8214808651328230664709384\n4609550582231725359408128\n4811174502841027019385211\n0555964462294895493038196\n4428810975665933446128475\n6482337867831652712019091\n4564856692346034861045432\n6648213393607260249141273\n7245870066063155881748815\n2092096282925409171536436\n7892590360011330530548820\n4665213841469519415116094\n3305727036575959195309218\n6117381932611793105118548\n0744623799627495673518857\n5272489122793818301194912\n9833673362440656643086021\n3949463952247371907021798\n6094370277053921717629317\n6752384674818467669405132\n0005681271452635608277857\n7134275778960917363717872\n1468440901224953430146549\n5853710507922796892589235\n4201995611212902196086403\n4418159813629774771309960\n5187072113499999983729780\n4995105973173281609631859...\n\n[the following link is better]
769504
divide by 22/7 or pi or 3.142
262913
It is not "almost impossible" it is really and truly impossible.  The digits never end, ever.\n\nI can give you a process you can use to calculate as many numbers as you want to... it has been used by supercomputers to calculate billions of digits.  However, that's the best that can be done.  You can never have ALL the numbers.\n\nSorry.\n\nHere is what Wikipedia has to say:\n\nthe exact value of π has an infinite decimal expansion: its decimal places never end. Much effort over the last few centuries has been put into computing more digits and investigating the number's properties. Despite much analytical work, in addition to supercomputer calculations that have determined over 1 trillion digits of π, no pattern in the digits has ever been found. Digits of π are available from multiple resources on the Internet, and a regular personal computer can compute billions of digits with available software.
105888
square root(pi) = 1.77245385
12475
PI doesn't have "didgets"\nIf you're looking for digits, check out http://3.141592653589793238462643383279502884197169399375105820974944592.com/
20634
So Pi is a number that has no end, so-to-speak. It has been calculated by computers to many many digits. I don't know what level of mathematics you've had, but in order to calculate pi by its general formula, you need to have taken differential and integral calculus classes. If you'd like to see pi calculated to ONE MILLION DECIMAL PLACES (oh my!) you can go here: http://3.141592653589793238462643383279502884197169399375105820974944592.com/