Square Image Of Symbol
⊏ is the “square image of” symbol used in math and notation as a directional image-style marker.
U+228F
⊏ is the Unicode symbol named “SQUARE IMAGE OF” (U+228F). It’s mainly used as a mathematical or typesetting symbol to indicate an image-related notion. You can copy it directly or use its HTML/CSS/JavaScript escapes.
Square Image Of Symbol Meaning
The symbol ⊏ (Unicode U+228F, “SQUARE IMAGE OF”) is a mathematical-style character often used to represent an “image of” concept with a square/boxed form. While it is not as widely recognized in everyday writing, it appears in technical documents, symbolic logic, and math typesetting where authors want a distinct variant of an image/containment-like operator. Its exact interpretation can depend on the surrounding notation, but the key point is that it functions as a specialized operator symbol rather than a general punctuation mark. When used in documents, it’s typically paired with other mathematical symbols to form consistent expressions.
Common uses
- •Labeling images or mapped objects in technical documentation and math notes
- •Writing math expressions that require a distinct “image of” operator
- •Annotating diagram text in STEM workflows (e.g., mapping between sets or transformations)
- •Creating consistent symbolic notation in reports, textbooks, and worksheets
- •Designing typographic symbols for custom educational or engineering graphics
Examples
⊏ SQUARE IMAGE OF Symbol
- ⊏A ⊏ B
- ⊏f(⋅) ⊏ g(⋅)
- ⊏Image: ⊏ of X under h
- ⊏Let ⊏ denote the image operator in this section
- ⊏S ⊏ T (as defined above)
Variations
Ready to copy
Technical codes
| Unicode | U+228F | |
| HTML Entity | ⊏ | |
| HTML Code | ⊏ | |
| CSS | \228F | |
| Alt Code | Alt + 8847 | |
| Decimal | 8847 |
How to type Square Image Of Symbol (⊏)
On Windows
Hold Alt and type 8847 on the numeric keypad. In Word, type 228F then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 228F. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 228f, then press Enter or Space.
Anywhere
Copy ⊏ with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What is the Unicode name of ⊏?
The Unicode name is “SQUARE IMAGE OF”.
What are the key code points and escapes for ⊏?
It is U+228F. HTML entity: ⊏ (decimal). CSS escape: \\228F. JavaScript escape: \\u{228F}.
What does ⊏ mean in math?
It’s a specialized operator symbol for an “image of” idea in mathematical notation; the exact meaning depends on the surrounding expression.
How can I copy ⊏ into HTML or text editors?
Copy the character directly as ⊏, or use the HTML entity ⊏ (decimal) / ⊏ (hex), depending on your editor.