3 ms·
The "bb" in "mathbb" isn't for "math, baby" (although accurate), but short for "blackboard bold". These letterforms don't originate with blackboards though, usi
by formerly_proven 3y ago
The "bb" in "mathbb" isn't for "math, baby" (although accurate), but short for "blackboard bold". These letterforms don't originate with blackboards though, using outlines for thick verticals goes back centuries. They're sometimes called open face.