Σ
| Symbol | Format | Data |
|---|---|---|
| Σ | Code Point |
U+03A3 |
| TeX |
\Sigma |
|
| SVG |
The capital Greek letter is visually very similar to the summation symbol (∑) which is the dedicated symbol in math for the summation operation.
In math, the summation symbol (∑) is used to denote the summation operation, which is a way of expressing the addition of a sequence of terms.
The Greek letter σ (sigma) is used in statistics to represent the standard deviation of a population.