Sigma
The sigma icon represents the Greek letter sigma, commonly used in mathematics and science to represent summation or standard deviation.
Exports at 24 × 24 px
Code
Sigma in your framework
In any framework. Customize it above, and the code follows.
export const SigmaIcon = (props: React.SVGProps<SVGSVGElement>) => (
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 14 14" fill="none" stroke="currentColor" {...props}>
<path fill="none" stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" d="M12.919 12.99c-3.921.437-6.352.475-9.72.19c-.818-.07-1.19-1.05-.636-1.657C3.815 10.152 4.8 9.097 6.26 7.793c.47-.42.457-1.165-.025-1.57c-1.468-1.238-2.454-2.275-3.683-3.675A.987.987 0 0 1 3.248.91c3.37-.154 5.796-.127 9.67.107"/>
</svg>
);Other libraries
Sigma in 8 more libraries
Each library draws it its own way. Open one to compare.
Flex free icons
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Sigma is tagged symbol, science, engineering and 2 more. Related tags follow; each opens its icons from every library.
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FAQ
Frequently asked questions
What the Sigma icon means and where it's used, then how to install, style, label and license it.
The sigma icon represents the Greek letter sigma, commonly used in mathematics and science to represent summation or standard deviation. It is a fundamental symbol in various mathematical and scientific contexts.
In real-world applications, this icon appears in educational materials, scientific papers, and mathematical notation systems.
From a UX perspective, the sigma icon communicates a specific mathematical or scientific concept, helping users understand complex ideas and navigate interfaces more effectively.
Sigma is one of 1,500 icons in Flex free icons, made by Streamline and released under CC BY 4.0. It is drawn on a 14 × 14 grid.
Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds SigmaIcon to components/icons/streamline-flex-sigma.tsx: one file, a size prop (24 by default) and every SVG prop, with no icon package.
Copy it as React (from Get icon, or the Code section): a typed SigmaIcon component you paste into your project, with no package to install. Only the icons you import reach your bundle. It works in Next.js and any React app.
Open Get icon, then Copy as code, and pick Vue, Svelte, Angular, Solid or Preact; the Code section shows each one too. Every version is one self-contained component with the SVG inside, and SVG and data URL copies are there for plain HTML and CSS.
With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Sigma icon, or any of 1,500 Flex free icons icons, and install it from a prompt.
It's drawn in currentColor, so it takes the text color wherever you use it: a class like text-primary recolors it. To bake a color in, set one in Customize before you copy.
Set width and height on the component, or a class like size-6. It's drawn on a 14 × 14 grid, so it stays sharp at any size. Customize also sets the size it exports at, its padding and rotation, and its stroke.
Yes. It follows the text color, so with text-foreground (or any theme token) it changes with your light and dark themes. The icon is a vector, so it needs no separate dark asset.
Next to a visible label it's decoration: add aria-hidden="true" so screen readers skip it. Standing alone, as in an icon button, give the button a name instead, like aria-label="Sigma", so screen readers say what it does.
Yes. SigmaIcon passes every SVG prop to the svg element, so <SigmaIcon aria-hidden="true" /> works, and so do role="img" with aria-label, or a title child, when it carries meaning on its own.
Yes. Open Get icon, then Download file: SVG for code or design tools like Figma; PNG, WebP or JPEG at 512px; or an ICO favicon with 16, 32 and 48px inside. Each one uses what you set in Customize.
Yes, with credit: CC BY 4.0 asks you to credit the author (Streamline) where you use the icons. The full terms are in the license, linked on this page.
Yes. CC BY 4.0 asks you to credit the author where you use the icons, for example "Icons by Streamline, CC BY 4.0" on an about or credits page.
Yes. Copying and downloading it is free, and the shadcn CLI install only needs a free account.
8 other libraries draw an icon called Sigma. The Other libraries section on this page shows each one, so you can compare them and open the one that fits your style.
Its tags are symbol, science, engineering, math and mathematics. Each tag page lists the icons that carry it from every library, which is the quickest way to find a match for Sigma in another set.
Flex free icons draws many icons in several styles: Solid next to the default. Open the library and pick a style above the grid to see Sigma's siblings in it.
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