Mathematical Script Small D 𝒹

Visual Description: A small d appears in a flowing script, with rounded curves and a tall, elegant loop. It is slimmer than a normal letter and carries a gentle slant. The stroke looks handwritten, like a cursive form used in math. It sits alongside symbols in formulas or diagrams.

Meaning & Usage: A typographic variant of d used to distinguish ideas in math. In formulas, it can denote a differential element or a variable chosen from a set. In software and calculators, script letters help separate types of symbols in equations. Quick UI controls may switch styles on demand to emphasize different roles in a calculation.

Historical Background: The script style belongs to a family of decorative letters used to mark special ideas in math. It grew with the development of typesetting and fonts, then migrated into digital editors. It is not tied to a single place or date, but to a broader move toward expressive notation.

Practical Use: In print and on screens, script d appears where a special variable or a differential is highlighted. In notes, textbooks, and math apps, it helps readability. In calculators and equation editors, you may apply a script style to d and related letters to group terms or indicate differentiated quantities.

See our category page for related symbols.

Look‑alikes: d (U+64).

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