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 mathematical texts.

Use double-struck 𝕠𝕦𝕥𝕝𝕚𝕟𝕖𝕕 words (aka blackboard bold) on Facebook, Twitter, and more. Our outlined text generator can help your words stand out. The "blackboard bold" style originated as a method to create a style that looked bold when drawn on blackboards (𝕝𝕚𝕜𝕖 𝕥𝕙𝕚𝕤).

Jul 31, 2023 · The blackboard bold version of X isn’t used too often, but there are other blackboard bold letters that you might want to familiarize yourself with, especially if your programming starts getting deeper and deeper into math.

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 blackboard was to add another stroke.

The blackboard bold font in the AMSFonts package only has capital letters. I sometimes wish to use a blackboard bold "1", for which I can use \usepackage {bbold}.

Apr 3, 2025 · A letter of the alphabet drawn with doubled vertical strokes is called doublestruck, or sometimes blackboard bold (because doublestruck characters provide a means of indicating bold font weight when writing on a blackboard).

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

Looking for Blackboard Bold fonts? Click to find the best 21 free fonts in the Blackboard Bold style. Every font is free to download!

Jul 8, 1997 · A demonstration of various blackboard bold typefaces available for TX (bbm, bbold, doublestroke, and msbm), including a PostScript file to preview them. Download the contents of this package in one zip archive (105.1k).

Feb 6, 2018 · Certain capital letters are sometimes written in blackboard bold and considered to be a distinct symbol with a distinct meaning from their regular counterparts. This is to help alleviate overloading of the letters of the Latin-1 alphabet in mathematics and physics.