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U+1D413 · Mathematical Bold Capital T · Mathematical Alphanumeric Symbols · Common

Mathematical Bold Capital T 𝐓

Visual Description: The symbol is the capital T in a bold mathematical style. It resembles a standard T but with heavier strokes and uniform thickness. In print and on screens, it sits tall and compact. It sits beside other bold characters & symbols to signal a special role in math formulas.

Meaning & Usage: Bold T marks a quantity as a vector, matrix, or other structured element. It helps separate these items from ordinary letters. In equations, it represents a variable with a fixed role, not a scalar. Writers often pair it with subscripts, tildes, or arrows to clarify operations.

Historical Background: In typography, bold styles were created to differentiate important quantities. Digital fonts extended this idea with mathematical alphanumeric symbols in separate blocks. Unicode and font design enabled consistent bold letters across software. This general trend supports clear notation in books, calculators, and programming tools.

Practical Use: In classrooms and software, bold T appears in formulas for linear algebra, systems of equations, and comparisons. Calculators and math apps include quick UI controls to switch between bold and plain letters, or to apply bold within a formula. It helps with quick recognition and organized data & results.

See our category page for related symbols.

Look‑alikes: T (U+54).

Need styled alternatives? Try the Fancy Text tool.

Confusables

Technical details
  • Codepoint: U+1D413
  • General Category: Lu
  • Age: 3.1
  • Bidi Class: L
  • Decomposition: <font> 0054
  • Block: Mathematical Alphanumeric Symbols
  • Script: Common
  • UTF-8: F0 9D 90 93
  • UTF-16: D835 DC13
  • UTF-32: 0001D413
  • HTML dec: &#119827;
  • HTML hex: &#x1D413;
  • JS escape: \u{1D413}
  • Python \N{}: \N{MATHEMATICAL BOLD CAPITAL T}
  • Python \U: \U0001D413
  • URL-encoded: %F0%9D%90%93
  • CSS escape: \1D413
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+1D413 or a built‑in character picker.

HTML: use the numeric entity (hex) or (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.