Pairs..........two numbers...............2...............the line at one half......1/2.....................two...........two of the most imp. numbers and concept in all math are on either side of 3...........which is how pi begins............................so called Eigenvalues...........................the same things but at different points can take on different values........pi...........3.14......................13...............is like pi backwards........truncated........................at the 2nd number...................2.............the square root of 2 added to the square root of 3 comes close to pi...............the square root of 10 is a close approx. for pi.........