Mathematical Sans-Serif Bold Small A 𝗮

Visual Description: The character is a bold, sans-serif lowercase A. It has clean, geometric curves with a closed loop and even stroke width. It looks compact and modern, with no serif detail. It blends with other bold math symbols to form a consistent line in formulas and UI.

Meaning & Usage: This symbol is a typographic variant of the letter a used in math to represent a variable, vector, or constant in bold style. Its meaning comes from context: it may stand for a quantity, a label, or an indexed item in equations. Use it to emphasize elements in formulas & diagrams.

Historical Background: It arises from the practice of applying bold styles to math letters to distinguish types in equations. In digital typesetting, mathematical alphanumeric symbols extend the basic alphabet with bold, italic, and script variants. The goal is to provide a distinct, readable set of glyphs that fit with calculators and software interfaces.

Practical Use: In math editors, you can select this glyph to denote a variable or a vector a. It works with formulas, spreadsheets, and calculators, especially when you need a quick visual contrast. In user interfaces, quick controls can switch between bold and regular styles for operations or comparisons.

See our category page for related symbols.

Look‑alikes: a (U+61).

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