↦
Arrow 23
- Unicode
- U+21A6
- Category
- Arrows
- HTML Entity
- ↦
- CSS
- \21A6
The ↦ (Rightwards Arrow From Bar) symbol features a standard right-pointing arrow originating from a solid vertical line. In mathematics, it is universally known as the "maps to" symbol, used to denote how a specific element is transformed by a function. Beyond equations, it occasionally appears in technical documentation and typography to indicate a starting boundary, a hard limit, or a constrained directional flow.
How to Type
- Windows
- Alt+8614 (on numeric keypad) or Win+. then search
- macOS
- Control+Command+Space then search "rightwards arrow from bar"
- Linux
- Ctrl+Shift+U then 21A6
- HTML
- ↦ or ↦
In Programming
In computer science and mathematics, ↦ is extensively used to define anonymous functions and element-wise transformations. It is commonly rendered in LaTeX using the \mapsto command.
Tags
arrow
bar
function
function definition
lambda calculus
maps to
maps-to notation
math
right
technical documentation
unicode arrows