Card Trivia:Mathmech Sigma

"Mathmech Sigma":

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• Appearances

• This monster's silhouette appears in the artwork of "Mathmech Equation".

• This monster is based on the summation operator sigma (Σ).
  • Fittingly, the jagged edges of this monster's sword and the comb on its helmet are shaped like the sigma letter.

• This monster has an upgraded Synchro form: "Geomathmech Final Sigma".

• This card is a counterpart of "Mathmech Nabla".
  • This monster is based on summation (which is involved in integration), while "Nabla" is based on differentiation.