Mathematical Bold Script Capital L 𝓛

Visual Description: The character is a bold script capital L. It has thick, rounded strokes with a flowing, cursive look. The stem curves and the tail sweeps gracefully. It resembles a handwritten L in a formal font. The letter sits in a clean mathematical style, not on a page of plain text.

Meaning & Usage: In math, this L marks a bold script style for variables. It signals a named quantity or a special set element. People use it to distinguish a variable from ordinary letters. It can denote functions, labels, or vectors in compact equations. Readers recognize it as a stylistic choice that preserves readability.

Historical Background: This style comes from an age when math notation used flourish and personal scripts. It reflects a blend of bold type and cursive writing, aimed at clarity in dense notebooks. The idea spread with typesetting and math fonts. It remains a design choice rather than a universal symbol. Its purpose is to signal distinction.

Practical Use: In calculators and software, this style helps separate labels from numbers. It can appear on quick UI controls that compare values or switch modes, such as A & B comparisons. The bold script L stands out in formulas, so users notice it as a special variable. It supports compact notation and fast reading during tasks like solving equations.

See our category page for related symbols.

Look‑alikes: L (U+4C).

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