---
title: "Function X Math Icon | Free Download PNG & SVG | Ultimate Regular"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/function-x-math--9018
canonical_url: "https://www.streamlinehq.com/icons/download/function-x-math--9018"
summary: "Clean line icon of a lowercase f beside parentheses enclosing an x. Used for function notation, equations, and math UI."
---

# Function X Math icon

The Function X Math icon shows a lowercase f beside parentheses enclosing an x. Drawn in the line style on a 24px grid with a 1.5px stroke so it stays clear at small sizes. Use it for function notation, calculus lessons, equations, math tools, and educational interfaces. It belongs to Ultimate Regular set in the Ultimate family.

## Preview

![Clean line icon of a lowercase f beside parentheses enclosing an x. Used for function notation, equations, and math UI.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/text-formating/function-x-math-xwm4ubp4e8av2ybv7gcod8.png/function-x-math-iglhzwx9i7cf02zw9pixou.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Function X Math
- **Type**: Icon
- **Set**: [Ultimate Regular](/icons/streamline-regular.md) — Icon encyclopedia with every concept. Regular style prioritizes simplicity, adapts to light/dark backgrounds. 
- **Family**: [Ultimate](/icons/ultimate-sets.md) — The encyclopedia of icons
- **Style**: Line, Minimal, Stroke
- **Category**: Interface Essential › Text Formating
- **Default size**: 24px
- **Stroke width**: 1.5px
- **Pricing**: Pro
- **License**: [Commercial](https://home.streamlinehq.com/license-premium)
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: function, math, variable, equation, calculus, formula, algebra, symbol, notation, text, formatting, interface

## Download

- [Download Function X Math on Streamline](https://www.streamlinehq.com/icons/download/function-x-math--9018)

## Also available in other styles

- [Function X Math — Ultimate Bold](/icons/download/function-x-math--7556.md) (Pro)
- [Function X Math — Ultimate Light](/icons/download/function-x-math--8287.md) (Pro)

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