Mar 28, 2014 · \mathrm was intended for roman symbols in math mode; \text was intended for text because of the way it spaces things. See this TEX thread. Since I don't believe we can use preambles in MathJax, we can't use \DeclareMathOperator, though we can use \newcommand, but that is orthogonal to the use of \mathrm vs \text for math symbols. $\endgroup$ –

Oct 5, 2013 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Jun 17, 2016 · Number sets symbols in Mathjax [duplicate] Ask Question Asked 8 years, 10 months ago.

Jan 8, 2019 · $\begingroup$ See also: How to markup expression using sigma notation for sum in MathJax and How to write mathematical symbols such as $\sum_{i=n}^\mathbb{N}$ with indices below/above the $\sum$. $\endgroup$ –

Feb 8, 2020 · And also if you can find a corresponding article on Wikipedia and if the symbols/formulas are typeset there using <math>..</math>, the same syntax is very likely to work in MathJax/LaTeX. (To view source code of the Wikipedia article, you can simply click on edit.)

For the strict versions, $\gt$ and $\lt$, you can use $\gt$ and $\lt$, or just the symbols $>$ and $<$. The symbols did sometimes create issues but I think this is fixed by now. For a general guide see MathJax basic tutorial and quick reference

Plus-Minus. Means a quantity of same magnitude can have either a positive or a negative value. As commonly found in square roots such as $$\sqrt[2]{625}= +-25$$.

May 7, 2014 · How can I type math symbols in this forum, like set operators, etc.? ... Next, if you want a LaTeX ...

Jan 10, 2016 · $\begingroup$ My personal experience with these symbols is that "|" is only readable as "such that" in class builders, i.e. $\{x\in A\mid P(x)\}$ is read "the set of x in A such that P of x", and ":" is only readable as such that in an existence quantifier, i.e. $\exists x\in A:P(x)$ is "there exists an x in A such that P of x" (and that last one is more commonly written …

In this answer, a line of $\\LaTeX$ doesn't render. (See the picture.) It appears that this is happening with other people too. It happens on the mobile site: Refreshing the page doesn't make a