Mathematical Italic Capital R 𝑅
Visual Description: The character appears as a capital R drawn in a mathematical italic style. The strokes tilt slightly to the right, and the tail curves with a gentle sweep. It looks lighter than a bold face, designed to blend with other italic letters in formulas. It reads as a variable symbol in math text.
Meaning & Usage: In formulas, this R acts as a variable label rather than a fixed constant. It can stand for a quantity, a parameter, or a placeholder in equations. It contrasts with upright letters used for naming objects. In UI, it helps distinguish generic symbols from constants or operators.
Historical Background: The mathematical italic style emerged with early digital typesetting and print design to separate variables from labeled words. Designers built a coherent set of italic Latin letters for mathematical notation. Over time, calculators and editors adopted these shapes to preserve readability in equations.
Practical Use: In editors and calculators, insert this R to denote a variable in a formula. It serves as a placeholder in templates and code snippets. In UI, controls for swap, compare, or apply superscripts help keep the glyph readable. Pair it with operators to build clear expressions.
See our category page for related symbols.
Look‑alikes: R (U+52).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D445 - General Category:
Lu - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0052 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 91 85 - UTF-16:
D835 DC45 - UTF-32:
0001D445 - HTML dec:
𝑅 - HTML hex:
𝑅 - JS escape:
\u{1D445} - Python \N{}:
\N{MATHEMATICAL ITALIC CAPITAL R} - Python \U:
\U0001D445 - URL-encoded:
%F0%9D%91%85 - CSS escape:
\1D445
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+1D445 or a built‑in character picker.
HTML: use the numeric entity 푅 (hex) or 푅 (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.