By the way, the red and blue controls seem to be switched… =)

]]>And if you know that you only need to do one of them, and can use this equation to find the other.

]]>Dan Kalman, Six ways to sum a series. The College Mathematics Journal. Vol 24, No 5, 1993, pp 402 – 421.

http://www.dankalman.net/AUhome/pdffiles/reprints.html ]]>