January 18th, 2013, 10:56 AM  #1 
Newbie Joined: Jan 2013 Posts: 8 Thanks: 0  pi clock
Hello everyone. I have been trying to solve a pi clock which is attach. I figured out most of the positioins except the 5 and 7 positions. 5 = RANK([pi,((S**1)**5)) 7 = pi, L(7,3) On the 5 position, I am guessing S is a sum series. I am not sure if the power is a 1. As for the 7 position, I think the L is a Eulidean norm vector. 
January 18th, 2013, 11:04 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 466 Math Focus: Calculus/ODEs  Re: pi clock
I used the IMG tags to display the larger image, and then removed the now unnecessary link to the image.

January 18th, 2013, 06:32 PM  #3 
Math Team Joined: Jul 2011 From: North America, 42nd parallel Posts: 3,372 Thanks: 233  Re: pi clock
OH WOW! THIS IS SO COOL... where can i get one of these? [color=#008000]MarkFL[/color] , can you post the missing 1/4 picture? 
January 19th, 2013, 07:25 AM  #4 
Newbie Joined: Jan 2013 Posts: 8 Thanks: 0  Re: pi clock
I can not use IMG tag in my post. So here is the link to the picture above. http://www.sbcrafts.net/clocks/clockpi.jpg 
January 19th, 2013, 09:17 AM  #5 
Senior Member Joined: Nov 2010 From: Berkeley, CA Posts: 174 Thanks: 35 Math Focus: Elementary Number Theory, Algebraic NT, Analytic NT  Re: pi clock
For the fifth position, I think that is the first homotopy group of the sphere. No idea about the seventh position, though.

January 19th, 2013, 10:05 AM  #6  
Newbie Joined: Jan 2013 Posts: 8 Thanks: 0  Re: pi clock Quote:
 
January 21st, 2013, 07:45 AM  #7 
Newbie Joined: Jan 2013 Posts: 8 Thanks: 0  Re: pi clock
I found the solution to the other question pertaining to 7 = pi (sub 1), (L(7,3)). The L in here is the least common denominator which is 21. The pi (sub 1) of (21) is the number of prime numbers except the first one from 1 to 21 which is 7. 
January 21st, 2013, 09:41 AM  #8 
Math Team Joined: Apr 2010 Posts: 2,778 Thanks: 361  Re: pi clock
How about ?

January 21st, 2013, 12:23 PM  #9  
Newbie Joined: Jan 2013 Posts: 8 Thanks: 0  Re: pi clock Quote:
 
January 22nd, 2013, 11:53 AM  #10 
Math Team Joined: Apr 2010 Posts: 2,778 Thanks: 361  Re: pi clock
It was meant as a suggestion for your nice clock. 

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