The Delta upper case Δ or Delta lower case δ symbols in Microsoft Word, Excel, PowerPoint, or Outlook. Both in Office for Windows and Office for Mac.
Delta (uppercase Δ / lowercase δ) is the fourth letter of the Greek alphabet. It’s the “d” sound in Modern and Ancient Greek.
Delta uppercase Δ symbol is used in mathematics to represent change in a variable, while the lowercase symbol δ indicate small quantities in mathematical proofs, involving limit, a key concept within calculus.
To us non-mathematicians Delta uppercase Δ is just a triangle while δ is circle with funny squiggle on top <g>.
How Delta upper case and Delta lower case look in different fonts.
Here’s some examples of how the Delta upper case and Delta lowercase symbols look in common Office fonts in Word 365.
Delta upper and lowercase symbol codes
These are the important code numbers or values you’ll need to enter the two symbols
Use the Alt + X shortcut in Word for Windows, for example type 0394 then Alt + X to enter Δ
Or enter the value into Character Code fields in Symbol dialog boxes to jump to that symbol.
Delta uppercase symbol Δ U+0394
Delta lowercase symbol δ U+03B4
Quick access for commonly used symbols.
If you use a symbol often, a fast way to enter it is AutoCorrect.
Once in a document you can copy it to AutoCorrect and make your own shortcut.
Word, Excel, PowerPoint and Outlook
Insert | Symbols | Symbol and look for the Delta symbol using Character Code 0394.
Window 11/10 Emoji Panel
The Windows 11/10 Emoji Panel has the Delta symbol Δ. Use Win + . (period/fullstop) to open the panel.
Choose the Symbols tab (the third of the top row icons), then the Language Symbols section which is marked by the capital Ω. Delta letters are in the top row.
See Emoji Panel is part of Windows 10 that totally sucks
Windows Character Map
Similarly, the Windows Character Map accessory in all Windows releases. Character Map has a search feature, something missing from the Insert | Symbol in Office.
Or use one of the hex character codes to jump to the right part of the list.
MacOS and Office for Mac inserting characters
On a Mac, to enter the Male, Female or combo symbol:
- Command + Control + Spacebar shortcut to open the Character Viewer.
- Search for “Delta“ will show both upper and lower case delta in various forms.
Despite the name Character Viewer, the Apple system tool will also insert characters into any program, including Office for Mac.
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