How to type Double Down Arrow
To type Double Down Arrow (⇓), press Alt + 8659 on Windows, holding Alt while typing the digits on the numeric keypad, or write ⇓ in HTML. On any system you can copy it from this page, or enter its codepoint U+21D3 directly: Ctrl+Shift+U then 21d3 on Linux, or 21d3 then Alt+X in Microsoft Word.
Downwards Double Arrow
- Copy it
- Unicode
- U+21D3
- Windows
- Alt + 8659 needs regedit
| Where | Shortcut | How |
|---|---|---|
| Windows | Alt + 8659 | Above 255, so Windows will not accept it as typed. Copy the character instead. |
| Mac | N/A | Press the keys together. |
| HTML | ⇓ | Paste this into HTML source. |
| Unicode | U+21D3 | DOWNWARDS DOUBLE ARROW |
Symbols related to Double Down Arrow
These are filed under downwards and arrow in CLDR, the keyword list Unicode publishes alongside the names.
Other arrows symbols
⇓ lives in the Arrows block (U+2190-U+21FF), arrows in every direction and weight. Within Unicode it is classified as So, a symbol.
What Double Down Arrow is used for
In mathematical notation ⇓ is a relation: it makes a claim about the two things either side of it, which is true or false rather than a value to work out. TeX gives a relation more space than an operator, and breaks a long line at one in preference to breaking at an operator. That is the classification unicode-math gives it, and it is what decides how the symbol is set: $\Downarrow$ in LaTeX, in maths mode rather than in a sentence.
Unicode publishes a second list of names for ⇓ in CLDR, the keywords its own search data offers rather than the formal name, and it is downwards double arrow. That word is what somebody looking for this character is liable to type when Double Down Arrow is not the name they know it by, and the search on the symbol lists matches it as well as the Unicode name.
How Double Down Arrow behaves in software
⇓ takes one column in a terminal. It carries no direction of its own, so in a line that mixes English with Arabic or Hebrew it takes the direction of the text around it rather than forcing one.
What people ask about Double Down Arrow
How to type a downward arrow?
You can press Alt + 8659 on Windows, with Num Lock on and the digits typed on the numeric keypad. That produces ⇓.
Every way to write Double Down Arrow
| Form | Value |
|---|---|
| Codepoint | U+21D3 |
| Decimal | 8659 |
| UTF-8 bytes | E2 87 93 |
| UTF-16 bytes | 21 D3 |
| HTML entity | ⇓ |
| HTML numeric | ⇓ or ⇓ |
| CSS | \21D3 |
| JavaScript | \u21D3 |
| Python | \u21D3 |
| URL-encoded | %E2%87%93 |
| LaTeX, in maths mode | $\Downarrow$ |
| SVG | 21D3.svg · (SIL Open Font License) |
If ⇓ arrives as ⇓
Its three UTF-8 bytes E2 87 93 are being read one at a time as Windows-1252. The text is undamaged; the reader has to be told it is UTF-8.