S&P 500 monthly chart squared.

Taking the monthly low of March 2009 @ 666.79 and finding the square root of it, which is 25.822. Then adding to 25.822, in increments of one, for each 180 degrees, to find support. And finally squaring it. I also rounded up the square root of 25.822 to 26, then moved the vertical time lines every 26 bars to the right.