∫
Integral
- Unicode
- U+222B
- Category
- Math
- HTML Entity
- ∫
- CSS
- \222B
The integral symbol (∫) is a fundamental mathematical notation used in calculus to represent integration, which calculates the area under a curve. Originally derived from the "long s" character by mathematician Gottfried Wilhelm Leibniz to stand for the Latin word summa (sum), it is universally recognized in scientific and engineering contexts. Beyond formal equations, it occasionally pops up in internet culture as a quirky typographic element or in math-related memes.
How to Type
- Windows
- Alt+8747
- macOS
- Option+B
- Linux
- Ctrl+Shift+U then 222b
- HTML
- ∫ or ∫
In Programming
In digital typesetting and documentation, the integral symbol is frequently rendered using LaTeX with the \int command. While not used directly as an operator in standard programming logic, it is essential in scientific software and libraries like MathJax to display calculus equations on the web.
Tags
LaTeX integral
analysis
antiderivative
area
area under curve
calculus
calculus symbol
integral sign
integration symbol
leibniz notation
long s
math integral
mathematics
sum symbol calculus
∫ symbol