Reflexive symmetry.............is it a coincidence.............that the square root of 13 starts out like the number of degrees in a circle????  13 is how pi starts out.........backwards............mirror symmetry.............and the closest prime to the 1st zero...................which is at 1/2 + 14..i.......and from a right triangle...............whose sides are 2 and 3.........the hyp would be the square root of 13...........coincidence????

Pi - Math is Fun

https://www.mathsisfun.com/numbers/pi.html

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Draw a circle with a diameter (all the way across the circle) of 1. Then the circumference (all the way around the circle) is 3.14159265... a number known as Pi.

You visited this page on 10/6/17.

pi to 10000 digits - University of Utah Math Department

https://www.math.utah.edu/~pa/math/pi.html

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pi=3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825 34211 70679 82148 08651 ...