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Delta Symbol Alt Code – How to Type Δ on Windows, Mac, and Ubuntu

The Delta symbol (Δ, δ) is commonly used in mathematics, science, and engineering to represent change, difference, or angles. Instead of searching for it every time, you can quickly insert it using Alt codes and keyboard shortcuts.

This guide will show you how to type the Δ (uppercase Delta) and δ (lowercase delta) symbols on Windows, Mac, and Ubuntu/Linux using Alt codes, Unicode input, and built-in character tools.

Alt Code for Delta Symbol (Δ) on Windows

Windows users can insert the Δ symbol using an Alt code.

Windows Alt Codes for Δ and δ

  • Uppercase Delta (Δ) → Alt + 916
  • Lowercase delta (δ) → Alt + 235

How to Use the Alt Code for Δ

  1. Enable Num Lock on your keyboard.
  2. Hold down the Alt key.
  3. Type 916 (for Δ) or 235 (for δ) using the numeric keypad.
  4. Release the Alt key, and the symbol appears.

📌 Note: This method only works with a numeric keypad. If your laptop doesn’t have one, try the Character Map or copy and paste the symbol.

How to Type the Delta Symbol on Mac

Mac doesn’t use Alt codes, but you can insert the Δ symbol using a simple keyboard shortcut.

Mac Shortcut for Δ

  • Uppercase Delta (Δ) → Option + J
  • Lowercase delta (δ) → Option + D

Steps to Insert the Δ Symbol on Mac

  1. Place your cursor where you want the symbol.
  2. Press Option + J (for Δ) or Option + D (for δ).
  3. The Δ symbol appears instantly.

✅ Alternative Method: Open Emoji & Symbols Viewer (Cmd + Control + Space) and search for “Delta”.

How to Type the Δ Symbol on Ubuntu/Linux

Linux users don’t have Alt codes but can use Unicode input or the Compose Key.

Unicode Input for Δ on Ubuntu/Linux

  1. Press Ctrl + Shift + U.
  2. Type 0394 (for Δ) or 03B4 (for δ).
  3. Press Enter, and the Δ symbol appears.

Compose Key Method (Ubuntu/Linux)

  1. Enable the Compose Key in keyboard settings.
  2. Press Compose, then D, then D again.
  3. The Δ symbol appears.

Alternative Ways to Insert the Δ Symbol

If keyboard shortcuts don’t work, try these methods:

Windows Character Map

  1. Open Character Map (Win + R → Type charmap → Press Enter).
  2. Search for Δ and select it.
  3. Click Copy, then paste it into your document.

Mac Emoji & Symbols Viewer

  1. Press Cmd + Control + Space to open the Character Viewer.
  2. Search for Δ and click it to insert.

Copy and Paste Method

If you’re in a hurry, simply copy this symbol: Δ δ and paste it where needed.

FAQs About Delta Symbol (Δ) and Alt Codes

What is the Alt code for the Delta symbol?
The Alt code for Δ is Alt + 916, and for δ it is Alt + 235 on Windows.

How do I type the Δ symbol on a laptop without a numeric keypad?
Use the Windows Character Map, Mac’s Emoji & Symbols Viewer, or copy and paste the symbol.

How do I insert the Δ symbol in Microsoft Word?
Use Alt + 916 on Windows or Option + J on Mac. You can also find it under Insert → Symbol in Word.

Does the Δ symbol work in web browsers and emails?
Yes! The Δ symbol works in all web browsers, email clients, and word processors.

Complete List of Windows Keyboard Shortcuts

If you need help for Windows, you can find a whole list of all keyboard shortcuts here.

https://keyboard-shortcuts.org/

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