---
title: "Sigma Thin Icon | Free Download PNG & SVG | Phosphor Thin"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/sigma-thin--28926
canonical_url: "https://www.streamlinehq.com/icons/download/sigma-thin--28926"
summary: "Clean line icon of an angular sigma with top and bottom bars. Used for math, summation, and formulas."
---

# Sigma Thin icon

The Sigma Thin icon shows an angular sigma shape with long top and bottom bars and a pointed center. Drawn in the line style on a 16px grid, its open spacing keeps the symbol clear in compact interfaces. Use it for mathematical notation, summation controls, formula builders, and science or engineering tools. It belongs to Phosphor Thin free set in the Phosphor family.

## Preview

![Clean line icon of an angular sigma with top and bottom bars. Used for math, summation, and formulas.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/phosphor-thin/sigma-thin-17310.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Sigma Thin
- **Type**: Icon
- **Set**: [Phosphor Thin](/icons/phosphor-thin.md) — Phosphor is a free and open source icon set created by Helena Zhang and Tobias Fried.
- **Family**: [Phosphor](/icons/phosphor.md)
- **Style**: Line, Outlined, Minimal
- **Category**: All Icons › Vector Icons
- **Default size**: 16px
- **Pricing**: Free
- **License**: [MIT](https://raw.githubusercontent.com/phosphor-icons/homepage/master/LICENSE)
- **Author**: [Phosphor](https://phosphoricons.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: sigma, sum, summation, symbol, greek, math, notation, algebra, calculus, mathematics

## Download

- [Download Sigma Thin on Streamline](https://www.streamlinehq.com/icons/download/sigma-thin--28926)

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