Mathematical Bold Script Small Y 𝔂

Visual Description: The symbol is a bold script version of a lowercase y. It blends rounded curves with a tall, graceful stroke. In many fonts it looks handwritten yet precise. The form stays clear in equations and captions. It is decorative but readable beside standard math symbols. It pairs well with operators and fractions in plain text or typeset formulas.

Meaning & Usage: It represents a variable or function in notation. The bold script signals a distinct object from ordinary y. In some contexts it marks a named quantity or a special instance in an equation. Designers and educators use it to prevent confusion when many symbols appear together. The emphasis helps readers recognize a concept at a glance.

Historical Background: The bold script style comes from typographic families that explore distinct voices. It developed as digital fonts and math typesetting expanded options for emphasis. Unicode and font designers grouped script variants to differentiate objects while keeping the same letter shape. This general history stays focused on type and usage.

Practical Use: In calculators, quick UI controls, and layouts, script letters can denote functions or special variables. When typing formulas, choose the bold script y to keep it distinct from plain letters. In documents, use it to mark a named object in guidance or examples. Ensure font support and encoding.

See our category page for related symbols.

Look‑alikes: y (U+79).

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