---
title: "Sigma Icon | Free Download PNG & SVG | Core Duo"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/sigma--24040
canonical_url: "https://www.streamlinehq.com/icons/download/sigma--24040"
summary: "Clean duotone icon of an angular Greek sigma symbol. Used for math, summation, and symbols."
---

# Sigma icon

The Sigma icon shows an angular Greek capital sigma formed by top and bottom horizontal bars connected by diagonal strokes. Drawn in the duotone style on a 14px grid with a 1px stroke so it stays clear at small sizes. Use it for mathematical notation, summation controls, equations, formulas, and symbol pickers. It belongs to Core Duo set in the Core family.

## Preview

![Clean duotone icon of an angular Greek sigma symbol. Used for math, summation, and symbols.](https://assets.streamlinehq.com/image/private/w_64,h_64,ar_1/f_auto/v1/icons/text-formatting/sigma-8p0qr4mhyyyck1voxgmr8.png/sigma-fs24rft4hisutvah4x3tah.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Sigma
- **Type**: Icon
- **Set**: [Core Duo](/icons/core-duo-color.md) — Core is timeless, like the Helvetica font or The Beatles. With its minimalist design and neutrality, it can adapt to any layout. The Duo style is perfect for projects that require differentiation between actions, using color to convey meaning effectively. It also allows you to customize the line thickness. All Core Duo icons are designed on a 14px grid with a 1px default stroke and two customizable colors.
- **Family**: [Core](/icons/core-sets.md) — Minimal icons
- **Style**: Duo, Minimal, Stroke, Filled, Wireframe
- **Category**: Interface Essential › Text Formatting
- **Default size**: 14px
- **Stroke width**: 1px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: sigma, sum, formula, chevron, format, formatting, triangle, arrow, video, media, control, text, pointer, play, forward, start

## Download

- [Download Sigma on Streamline](https://www.streamlinehq.com/icons/download/sigma--24040)

## Also available in other styles

- [Sigma — Core Remix](/icons/download/sigma--28915.md) (Pro)
- [Sigma — Core Line](/icons/download/sigma--23567.md) (Pro)
- [Sigma — Core Solid](/icons/download/sigma--23707.md) (Pro)
- [Sigma — Core Neon](/icons/download/sigma--30586.md) (Pro)
- [Sigma — Core Gradient](/icons/download/sigma--28293.md) (Pro)
- [Sigma — Core Flat](/icons/download/sigma--23958.md) (Pro)
- [Sigma — Core Pop](/icons/download/sigma--31486.md) (Pro)

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