Mathematical Italic Small X 𝑥
Visual Description: A slender mathematical italic x appears as a small, slanted letter. It has a smooth stroke and a distinct curvature that sets it apart from a plain x. It sits in formulas as a variable, alone or with other symbols. It looks clean on both page and screen.
Meaning & Usage: The x stands for an unknown quantity. It represents a variable in equations. It helps describe relationships in algebra and calculus. In many contexts, x is the placeholder that experiments, calculations, or graphs solve for. It appears in simple and complex formulas alike.
Historical Background: In the history of math, different styles emerged to distinguish variables from ordinary text. Printers and scholars gradually adopted an italic form for variables. The aim was clarity, not decoration. Over time, mathematical notation standardized the use of italic letters for symbols like x.
Practical Use: In formulas and calculations, x marks the unknown. It appears in equations across science and engineering workflows. Software, calculators, and math editors give quick UI controls to insert and manipulate x, compare values, or solve for it. You can switch modes to focus on x driven tasks.
See our category page for related symbols.
Look‑alikes: x (U+78).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D465 - General Category:
Ll - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0078 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 91 A5 - UTF-16:
D835 DC65 - UTF-32:
0001D465 - HTML dec:
𝑥 - HTML hex:
𝑥 - JS escape:
\u{1D465} - Python \N{}:
\N{MATHEMATICAL ITALIC SMALL X} - Python \U:
\U0001D465 - URL-encoded:
%F0%9D%91%A5 - CSS escape:
\1D465
How to type / insert
Fast copy: click the Copy button near the top of this page.
By codepoint: in many editors and IDEs, you can insert via the Unicode code U+1D465 or a built‑in character picker.
HTML: use the numeric entity 푥 (hex) or 푥 (decimal) when an HTML entity is needed.
Compatibility & troubleshooting
Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.
Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.