Latin Small Letter X
Part of Basic ASCII: Alt 33 to 126
On Windows, hold Alt and type 120 on the numeric keypad to insert latin small letter x.
- Alt code
- Alt+120
- HTML entity
- x
- Unicode
- U+0078
About this symbol
Using x for an unknown number comes from René Descartes, whose La Géométrie of 1637 used letters from the end of the alphabet, x, y and z, for unknowns, and letters from the start for known values. Why x became the favourite is not known for certain.
Unicode facts
- Official name
- LATIN SMALL LETTER X
- Type
- Lowercase letter
- Unicode block
- Basic Latin
- Unicode group
- Lowercase Latin alphabet
- Added in
- Unicode 1.1 (1993)
Click the symbol or any value at the top of the page to copy it. See the full Basic ASCII: Alt 33 to 126 chart for related characters.