⊞

Math Operator 155

Unicode
U+229E
Category
Math
HTML Entity
⊞
CSS
\229E
The ⊞ (Squared Plus) symbol features a standard plus sign completely enclosed within a square. Mathematicians primarily use it in abstract algebra to represent custom binary operations, direct sums, or logical functions. Outside of mathematics, internet users occasionally repurpose the symbol to visually represent a stylized windowpane or the Microsoft Windows logo in text-based designs.

How to Type

Windows
Win+. then search 'squared plus' or Alt+8862
macOS
Control+Command+Space then search 'squared plus'
Linux
Ctrl+Shift+U then 229E
HTML
⊞ or ⊞

In Programming

In mathematical formatting languages like LaTeX, the symbol is rendered using \boxplus to denote specialized addition operations. While rarely used in standard application code, it frequently appears in academic documentation and custom symbolic math libraries.

Read full meaning article

Tags

Windows logo text abstract algebra addition box plus boxed boxed plus custom operator direct sum mathematics operator plus in square squared plus text art windowpane symbol

Related Symbols

± Plus Minus Sign × Multiplication Sign ÷ Division Sign ≠ Not Equal To ≈ Approximately Equal To ∞ Infinity √ Square Root ∑ Summation ∫ Integral π Pi ≤ Less Than or Equal To ≥ Greater Than or Equal To