Mathematical Script Small U 𝓊

Visual Description: It resembles a graceful lowercase u drawn in a calligraphic style. The letter curves with a subtle tilt and a slender stroke that flows into a small tail. In many fonts, it appears lighter and more decorative than a plain letter, signaling a special meaning in math notation.

Meaning & Usage: In formulas, it is used as a variable, a function name, or a quantity with a distinctive role. Script letters help separate special quantities from ordinary symbols. Designers and math writers use it to convey elegance and to hint at a symbolic context in equations.

Historical Background: The character is part of a family of script letters collected for math. It grows from a typesetting tradition that used decorative script to mark special ideas. In digital fonts and math tools, these script forms expanded to enhance readability and organization without changing core meaning.

Practical Use: In formulas and calculators, script letters appear as labeled variables or as quantities in equations. Quick UI controls let users toggle between script and plain letters, compare values, or switch contexts with a tap or click. Such controls speed up learning and on-screen experimentation.

See our category page for related symbols.

Look‑alikes: u (U+75).

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