∂³Σx²

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Revision as of 21:02, 27 June 2019 by LegoK9 (talk | contribs) (Regular sigma (Σ), not summation sigma (∑))
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∂³Σx²

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Δ³Σx² was inscribed on K9's regeneration unit. (TV: Regeneration) Similar inscriptions were seen by the First, Second and Third Doctors in the tomb of Rassilon. (TV: The Five Doctors)

Behind the scenes

In the wreckage of K9, writing on his regeneration unit resembles Old High Gallifreyan. (TV: Regeneration)

This is close to the Doctor's name "∂³∑x²" as given according to the 1972 Doctor Who reference guide The Making of Doctor Who, which is, however, not a valid source on this wiki.