BLACKBOARDBOLD

Blackboard bold

Blackboard bold is a typeface style that is often used for certain symbols in mathematical texts, in which certain lines of the symbol are doubled. The symbols usually denote number sets. Blackboard bold symbols are also referred to as double struck, although they cannot actually be produced by double striking on a typewriter.

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blackboard bold

Noun

  1. A typeface used for representing bold characters, mainly used in mathematical texts, that allows these characters to be easily distinguished from non-bold characters when written.


The above text is a snippet from Wiktionary: blackboard bold
and as such is available under the Creative Commons Attribution/Share-Alike License.

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