What means
They mark two filled cells in an eight-part tile. An octant divides a character cell into two columns and four rows; neighboring tiles can join into a larger picture.
The 1984 Kaypro map lists this as “Kaypro Normal A4,” a code in that machine's character table. Programs arranged such cells as rough pixels when they could not draw individual pixels directly. Sextants use a related six-cell mosaic; octants use eight. Unicode carries this pattern beyond Kaypro's table.
Don't confuse it with
4Questions people ask
1Why does this symbol appear as a box?
The active font may not include it. Cascadia Code added octant support in release 2404.03; display depends on whether an app's font contains the character.
How to type
Windows (Word)
Alt+XType 1CD10, then Alt+X to get .
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “block octant-45”.
Linux
Ctrl+Shift+UType 1cd10, then Enter or Space.
HTML
𜴐CSS
\1CD10Codes and encoding1 code points
HTML decimal
𜴐
HTML hex
𜴐
CSS content
content: "\1CD10";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9C%B4%90
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.