My Math Forum Reverse digits of pi series

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 March 10th, 2019, 01:47 AM #1 Senior Member   Joined: Oct 2009 Posts: 863 Thanks: 328 Reverse digits of pi series Reference : https://en.wikipedia.org/wiki/Pi Can we write a Computer program which will print Reverse Digits of Pi series? Final output of the program will be 5,1,4,1,3 Can we start from $\omega$ till 1 for the program? The programming language could be LOLCODE, Befunge, Whitespace, Ook!, Malbolge, etc. Can we name this new Mathematical series as Reverse pi number series? Thanks & Regards Thanks from Maschke, topsquark, romsek and 1 others
 March 10th, 2019, 10:23 AM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,549 Thanks: 1399 I've been waiting for a chance to use Malbolge! Thank you! Thanks from topsquark
March 10th, 2019, 01:25 PM   #3
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Quote:
 Originally Posted by Micrm@ss Reference : https://en.wikipedia.org/wiki/Pi Can we write a Computer program which will print Reverse Digits of Pi series? Final output of the program will be 5,1,4,1,3 Can we start from $\omega$ till 1 for the program? The programming language could be LOLCODE, Befunge, Whitespace, Ook!, Malbolge, etc. Can we name this new Mathematical series as Reverse pi number series? Thanks & Regards
No!! There is no last digit!!

March 10th, 2019, 01:37 PM   #4
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Quote:
 Originally Posted by mathman No!! There is no last digit!!
Are you sure?

 March 10th, 2019, 02:13 PM #5 Senior Member     Joined: Sep 2015 From: USA Posts: 2,549 Thanks: 1399 Thanks from topsquark, SenatorArmstrong and idontknow
 March 10th, 2019, 02:15 PM #6 Senior Member   Joined: Dec 2015 From: somewhere Posts: 632 Thanks: 91 First find the n-th digit of pi and reverse it but pi is irrational. Last edited by idontknow; March 10th, 2019 at 02:21 PM.
 March 10th, 2019, 02:27 PM #7 Senior Member   Joined: Aug 2017 From: United Kingdom Posts: 313 Thanks: 112 Math Focus: Number Theory, Algebraic Geometry Perhaps a proof using Poe's law could work here. Thanks from Maschke, topsquark, Joppy and 1 others
March 11th, 2019, 12:42 PM   #8
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 Originally Posted by Maschke Are you sure?
Yes. A last digit implies a finite number of digits.

 March 11th, 2019, 12:58 PM #9 Senior Member   Joined: Dec 2015 From: somewhere Posts: 632 Thanks: 91 I think he is asking to show the decimal digits of pi in reverse way but in a bounded way . This can be done with a specific software or simple algorithms . Approximations of pi can be used too . If not then make a statement : Given natural number n , find the function $\displaystyle f(n)$ that gives the number in reverse.
March 11th, 2019, 01:05 PM   #10
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Quote:
 Originally Posted by mathman Yes. A last digit implies a finite number of digits.
It doesn't. The ordinal $\omega+1$ is infinite and has a last element.

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