Integral Symbol
Click the symbol above to copy
Technical Information
U+222B∫"\222B"∫Creative Star Showcases
- ∫ f(x) dx
- ∫₀¹ x² dx
- ∬ f(x, y) dA
- ∮ f(x, y) ds
- Area = ∫ y dx
Integral Symbol Content
Integral Symbol (∫)
The "Integral Symbol" (∫) is a fundamental symbol in calculus, representing the operation of integration. It is used to find the area under a curve, volume of a solid, or to find a function whose derivative is known. This symbol is an elongated 'S', which stands for 'sum,' reflecting its origin as the limit of a sum of rectangles to approximate an area.
How to Use the Integral Symbol
You can easily copy and paste the Integral Symbol: ∫
On Windows:
Use the Character Map (Charmap.exe), search for "Integral," or use its Unicode code point directly.
On Mac:
Use the Character Viewer (Edit > Emoji & Symbols), and search for "integral."
On Mobile (iOS/Android):
This symbol is commonly available on mathematical keyboards or through specialized symbol input tools.
Technical Information for Developers
The following codes are useful for implementing the Integral Symbol (∫) in websites and applications.
HTML Entities:
∫∫∫CSS Content Property:
.integral-symbol::before { content: "\222B"; }Unicode Details:
- Unicode: U+222B
- Name: INTEGRAL
- Block: Mathematical Operators, U+2200 - U+22FF
- Plane: Basic Multilingual Plane, U+0000 - U+FFFF
- Script: Code for undetermined script (Zyyy)
- Category: Math Symbol (Sm)
- Bidirectional Class: Other Neutral (ON)
- Combining Class: Not Reordered (0)
- Character is Mirrored: Yes
- Unicode Version: 1.1 (June 1993)
Encoding:
- UTF-8 Encoding:
0xE2 0x88 0xAB - UTF-16 Encoding:
0x222B - UTF-32 Encoding:
0x0000222B