∑

sigma a greek letter often used in math as representation of summary operation
how would you write sum from 1 to 1000, without typing 1000 numbers?
I would use sigma ∑ notation tex\sum_{1}^{1000} i/tex
by seledrim May 06, 2016
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∑

The letter Sigma is ∑.
He's so ∑!
by RT∑:) May 10, 2025
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