Mathematical Script Capital O 𝒪

Visual Description: The character appears as a graceful, rounded O with a flowing, script-like stroke. It has a consistent thick and thin line, like handwriting. In display, it sits beside variables to indicate a script style. It is compact and elegant, often used in formulas and labels. In a calculator UI, it can be shown in a script font.

Meaning & Usage: This symbol marks a script version of the letter O. It denotes a style used for objects or variables. In text, it signals a decorative but meaningful distinction. In a UI, users may pick this style from a font menu for emphasis. It is not a standalone operation; it supports context in formulas.

Historical Background: The character belongs to a family of script letters used to convey elegance in writing. It spread with typesetting as designers adopted script forms to distinguish notation. The style evolved with fonts and digital tools, growing in textbooks and papers. No specific dates or places are cited; keep it general.

Practical Use: In formulas, this script O can denote a special object or variable. In calculators and math apps, include a quick UI control for style switching that applies script fonts to selected symbols. Use a small palette or toggle for script styles to compare appearances side by side. It helps teaching, notation clarity, and visual distinction in technical documents.

See our category page for related symbols.

Look‑alikes: O (U+4F).

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