The symbols usually denote number sets. One way of producing blackboard bold is to double-strike a character with a small offset on a typewriter. Thus, they are also referred to as double struck. In typography, such a font with characters that are not solid is called an "inline", "shaded", or "tooled" font.
Bold text. To make a text bold use \textbf command: Some of the \textbf{greatest} discoveries in science were made by accident.
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).
Make text bold . Click Bold. in the Font group on the Home tab. Type the keyboard shortcut: CTRL+B.
It is very simple: DO NOT USE \bf IN MODERN LaTeX DOCUMENTS! It is deprecated. Use \bfseries instead, which will work properly under the New Font Selection Scheme (NFSS) of LaTeX2e. About \textbf vs. ... tl;dr: use \textbf / \textit / \emph . – user541686. Mar 7, 2021 at 17:22.Jan 20, 2012
To write text in bold font, use a double asterix or underscores before and after the text.Oct 24, 2016
R = real numbers, Z = integers, N=natural numbers, Q = rational numbers, P = irrational numbers.
\mathbb N makes the slanted line bold.Apr 17, 2019