Mathematical Fraktur Small U 𝔲

Visual Description: The symbol is a small u drawn in a Fraktur style. It looks like a calligraphic, blackletter letter with bold verticals and delicate curves. The strokes are angular at the joints, giving it an antique yet readable feel. In math layouts, it sits beside other stylized letters and symbols.

Meaning & Usage: The Fraktur u is a typographic variant of the ordinary u. It signals emphasis or distinction in formulas without changing meaning. In math documents, it helps separate variables or functions from nearby text. In calculators and editors, you may toggle this style to preview alternatives quickly.

Historical Background: Fraktur is a style rooted in older printing traditions. It spread in various type families and, in mathematics, a Fraktur variant became a preferred option for stylistic emphasis in technical texts. Over time, digital fonts adopted these forms, making them common in documents and software that care about typography.

Practical Use: In formulas, calculators, and quick UI controls, apply the Fraktur u to distinguish a parameter or a variable in diagrams and equations. It is a visual aid, not a new symbol. Use it in font options, editor presets, or formula previews to compare styles or test readability during design tasks.

See our category page for related symbols.

Look‑alikes: u (U+75).

Need styled alternatives? Try the Fancy Text tool.