Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed …

Use double-struck 𝕠𝕦𝕥𝕝𝕚𝕟𝕖𝕕 words (aka blackboard bold) on Facebook, Twitter, and more. Our outlined text generator can help your words stand out.

Double strike or Blackboard bold is a typeface style that is often used for certain symbols in mathematical texts, in which certain lines of the symbol (usually vertical or near-vertical lines) are …

Blackboard bold, also known as doublestruck or double-struck notation, is a typographic convention in mathematics where uppercase letters are rendered with doubled vertical strokes to mimic bold …

Some mathematical elements need to be typeset using fonts containing characters/symbols of a certain style; for example, it is customary to represent real numbers with a blackboard bold font (such as R), …

Blackboard bold originated from the attempt to write bold symbols on typewriters and blackboards that were legible but distinct, perhaps starting in the late 1950s in France, and then taking hold at the …

Nov 23, 2021 · Blackboard bold letters are letters of the alphabet written with double vertical strokes indicating sets. They used to be called “blackboard bold” because the only way to signal them on the …

Aug 6, 2016 · A blackboard bold (double struck, open face) letter is an uppercase alphabetic character of the Latin alphabet that denotes an important set of numbers.

Blackboard bold is a typeface style that is often used for certain symbols in mathematical texts, in which certain lines of the symbol (usually vertical or near-vertical lines) are doubled.

Sep 12, 2025 · Blackboard bold is a specific typeface used in mathematics to denote certain sets of numbers, such as real numbers (mathbbR), complex numbers (mathbbC), and integers (mathbbZ).