Σ

An Σ is a sigma.

1 In math it is a summation symbol.

2 In Greek language it is a capital letter.

3 In ASCII it can substitute an E

1 I=1Σ4 I+6

2 αßΓπΣσµτΦΘΩδ∞φε∩≡

3 HΣLLO GRΣΣK DUDΣ

by ΣJ1oo1 November 06, 2009