# \txtbfbbsigma

The σ symbol (Greek small letter sigma, U+03C3), written as \txtbfbbsigma in LaTeX text mode.

https://texform.dev/latex/symbols/txtbfbbsigma

## Metadata

| Field | Value |
| --- | --- |
| Topic | [Blackboard bold (bboldx)](https://texform.dev/latex/topics/blackboard-bold) |
| Packages | bboldx |
| Allowed mode | text |
| Glyph | σ |
| Unicode | U+03C3 GREEK SMALL LETTER SIGMA |
| Delimiter | No |

## Syntax

```latex
\txtbfbbsigma
```

Takes no arguments.

## In TeXForm

TeXForm parses this entry as a character leaf mapped to U+03C3 (GREEK SMALL LETTER SIGMA).