User:SOTO/Forum Archive/Inclusion debates/@comment-1783865-20151107210457/@comment-85.151.212.46-20151111092736

The doctors real name is without a doubt (seen in tv series (the five doctors) as well as in the making of doctor who book from the seventies):

δ³∑x²

(you could read this as mathematical symbols, stating something like delta cubed sigma x squared, or the 3rd order derivative of the sum of x squared (summing over the entire domain?))