A blackboard bold (double struck, open face) letter is an uppercase alphabetic character of the Latin alphabet that denotes an important set of numbers., Learn how to use the `mathbb` command in LaTeX to convert letters and numbers into blackboard-bold style. This guide covers various packages and examples to help you create clear mathematical documents., 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), or topological spaces with calligraphic font (such as (T)., Provide blackboard bold symbols, sometimes also known as doublestruck letters, used to denote number sets such as the natural numbers, the integers, etc. Here. the \mathbb{N} gives blackboard bold symbol â„•, representing the natural numbers., sans serif blackboard bold font, for use in mathematics. package. Download the contents of this package in one zip archive (173.1k)., blackboard bold 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..