HTML | Meaning | |
---|---|---|

∞ |
`∞` `∞` `U+221E` |
Infinity SymbolThe infinity symbol, also known as lemniscate, represents the concept of infinity or something without any bound in mathematics and various other disciplines. |

♾️ |
`♾ ️` `U+267E U+FE0F` |
Infinity EmojiRepresents the concept of infinity, eternity, or endlessness, especially in informal communication and digital platforms like social media and messaging apps. |

♾ |
`♾` `U+267E` |
Permanent Paper Sign (Infinity Symbol Variant)Often used to represent the concept of infinity or endlessness, particularly in mathematical contexts and as an alternative to the standard infinity symbol (∞). |

π |
`π` `π` `U+3C0` |
PiRepresents the mathematical constant Pi, the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. |

≠ |
`≠` `≠` `U+2260` |
Not Equal ToRepresents inequality between two values or expressions. |

≈ |
`≈` `≈` `U+2248` |
Approximately Equal ToUsed to indicate that two values are approximately, but not exactly, equal. |

± |
`±` `±` `U+B1` |
Plus-Minus SymbolIndicates the possible variability or range of values, often used to represent the margin of error. |

∑ |
`∑` `∑` `U+2211` |
Summation SymbolRepresents the sum of a series of terms in mathematics. |

∫ |
`∫` `∫` `U+222B` |
Integral SymbolRepresents integration in calculus, a fundamental concept in mathematics. |

### What is the Infinity Symbol?

The infinity symbol, denoted as ∞, also known as lemniscate, represents the idea of something being infinite or unbounded. It is widely used in various fields such as mathematics, physics, and philosophy to describe concepts, quantities, or entities that have no limits or bounds.

### Applications of the Infinity Symbol in Various Fields

The infinity symbol (∞) is not confined to mathematical contexts; it finds significance in multiple disciplines:

**Mathematics:**Utilized to signify values or quantities that are unbounded.**Physics:**Employed in theories discussing infinite dimensions or infinitely large or small quantities.**Computer Science:**Used to indicate infinite loops or unbounded algorithms.**Philosophy and Theology:**Represents notions that transcend human understanding, such as the concept of an infinite being.**Popular Culture:**Symbolic of enduring love, eternity, or unending cycles, commonly found in artistic works and jewelry.

The interpretation of the infinity symbol is largely determined by its contextual usage, whether in rigorous academic fields or in symbolic and cultural expressions.

### History of the Infinity Symbol

The infinity symbol was introduced by mathematician John Wallis in 1655. He used it to represent mathematical infinity, an essential concept in calculus and theoretical mathematics. The symbol has since been adopted in various other fields to denote endlessness or limitlessness.

### How to Type the Infinity Symbol Using Keyboard Shortcuts, Alt Codes, and LaTeX

**Windows:**Hold down the`Alt`key on your keyboard and type`221E`

on the numeric keypad, then release the`Alt`key.**Mac:**Press`Option`+`5`.**Linux:**Press`Ctrl`+`Shift`+`u`, then type`221e`

and press`Enter`.**HTML:**Use the named entity`∞`

or the numeric entity`∞`

.**LaTeX:**To type the infinity symbol in LaTeX, use the command`\infty`

.