Mathematical Italic Capital B 𝐵

Visual Description: The symbol appears as a tall, slanted uppercase B. It keeps the smooth curves of a typical capital B but leans to the right in an italic style. The strokes are clean, with even weight across the lines. It reads clearly in math text and on screens. The look highlights its variable role rather than a constant.

Meaning & Usage: This symbol is used as a variable in formulas and equations. In math notation, italic letters denote quantities to be solved or manipulated. It can stand for a scalar, a parameter, or a placeholder in a model. In calculators and quick UI controls, it marks an input field or a relation to compare B with other values.

Historical Background: The italic style emerged to distinguish variables from constants in printed math. Early notation favored slanted letters to show change and uncertainty. Over time, this style was formalized in typography to ensure clear reading on paper and screens. The specific symbol became a standard part of the family of math letters.

Practical Use: In formulas, this B often appears in equations like B = f(x) or as a parameter in a model. In software and calculators, you may see it as a quick label for a variable. Use it with simple operations and quick UI controls for comparisons to test ideas and relationships.

See our category page for related symbols.

Look‑alikes: B (U+42).

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