What ⌹ means
It handles matrix inverse and matrix division. A matrix is a grid of numbers. Before one matrix, ⌹B returns its inverse, used to undo the matrix’s effect in multiplication. Between two arguments, A⌹B performs matrix division, used to solve equation systems or find a best-fit when no exact solution exists. Its position changes the operation; it is not ordinary ÷.
The mathematical notation behind APL began in Kenneth Iverson’s work in 1957; by 1966, it had become the APL programming language, where symbols such as ⌹ could be executed as operations.
This is specialist APL notation, not a general-purpose division mark.
For ordinary elementwise division in APL, use ; ⌹ means matrix inverse or matrix division.
Part of the collection
Don't confuse it with
1
Related characters
1
Questions people ask
1Why does ⌹ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
More like this
9
How to type or find ⌹
- Also called
- domino · matrix inverse · matrix divide
- Search it as
- APL symbol · APL domino
- Shows up in
- Anything that takes text · its shape is whatever your font draws
⌹\2339APLShift=; that key position also produces ÷.Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.