2 equations: GA GA & Lady Gaga

A GA GA equation and a Lady Gaga equation. The former is from a study by Yaoming Yu of Shanghai Normal University, China: “PCR algorithm for parallel computing the solution of the general restricted linear equations,” Yaoming Yu, Journal of Applied Mathematics and Computing, Volume 27, Numbers 1-2 / May, 2008, pp. 125-136:

The latter is a blameitonthevoices formula is for the chorus to the Lady Gaga song “Bad Romance“:

(Thanks to investigator Rose Fox for alerting us to the LG formula. NOTE: The original source of the Lady Gaga formula is a matter of some debate.)