Mathematical Bold Script Capital U 𝓤

Visual Description: This character is a large, decorative U from the bold script family. It has flowing curves and a calligraphic feel. The strokes are thick and smooth. It reads elegant on pages and in screens, yet remains legible in formulas & labels. The form carries a subtle slant and flourish.

Meaning & Usage: It is used as a stylized variable or label in math & notes. In formulas, the bold script U can mark a special quantity or a component of a system. In calculators & apps, designers may display such glyphs to distinguish steps, sets, or dependent quantities quickly.

Historical Background: These bold script variants come from a tradition of diverse typefaces used to separate ideas in mathematics. Digital typesetting and Unicode libraries later standardized such styles so they render consistently across devices. They appear in textbooks, software, & fonts to provide distinctive emphasis without changing underlying symbols.

Practical Use: In practice, you may see this character in math editors, notebooks, and UI themes as a labeled variable. It helps differentiate quantities and steps in an equation. Quick controls for operations or comparisons can toggle this style, allowing students & professionals to scan formulas and locate important terms fast.

See our category page for related symbols.

Look‑alikes: U (U+55).

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