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5

This more-or-less summarizes some of the stuff which has already been said in the comments. If I understood correctly, the OP is asking about getting indices above/below the sign for integral or sum. I hope this answers the question at least partially. Probably the best thing to do is to show some examples: In the inline mode we can write $\sum_{n=0}^\...


3

In order to get the preferred notation in accordance with ISO 80000-2, use $$\sum\limits_{i = 1}^n {a_i}$$ $$\sum\limits_{i = 1}^n {a_i}$$ However, the following notations are also used $$\sum\nolimits_{i = 1}^n {a_i}$$ $$\sum\limits_i {a_i}$$ $$\sum\nolimits_i {a_i}$$ $$\sum {a_i}$$ $$\sum\nolimits_{i = 1}^n {a_i}$$ $$\sum\limits_i {a_i}$$ $$\sum\...


5

It isn't pretty, but: $$ \left. \begin{matrix} 5\\[5ex] 6 \end{matrix} \right] \begin{matrix} \\ 2 \\ \\ \end{matrix} \left[ \begin{matrix} 1 \\[5ex] 2 \end{matrix} \right. $$ $$ \left. \begin{matrix} 5\\[5ex] 6 \end{matrix} \right] \begin{matrix} \\ 2 \\ \\ \end{matrix} \left[ \begin{matrix} 1 \\[5ex] 2 \end{matrix} \right. $$


7

The following: $$\left.\begin{array}{c} 5\\ 6 \end{array} \right] \quad 2\quad \left[\begin{array}{c} 1\\ 2 \end{array}\right.$$ is produced by $$\left.\begin{array}{c} 5\\ 6 \end{array} \right] \quad 2\quad \left[\begin{array}{c} 1\\ 2 \end{array}\right.$$ You can make the number smaller and/or add space by including blank lines, e.g. $$\left.\begin{...


1

Markov Chains This is a heuristic solution for coding Markov chains in Mathjax using a combination of commutative diagrams, the encircle tool and font sizes. There are a few minor issues with this method, for instance the arrows' ends should be attached closer to their targets. Also, it lacks double-headed diagonal arrows and it is difficult to attach ...


2

Use single dollars and \displaystyle and be sure to place spaces outside the dollars: Text before If I want to write $\displaystyle 2=1+1=2(0.5+0.5)=\sum_{n=1}^40.5=\sum_{n=1}^21$, this is happening but now it looks fine, at least to me, and the paragraph continues neatly. Text after


1

That's a feature. The two dollar-sign method is supposed to break the stuff between it onto its own line. Is this what you're trying to do? $$2=1+1=2(0.5+0.5)=\sum_{n=1}^40.5=\sum_{n=1}^21\text{this is happening}$$


0

Since I had to make them anyways here are images of the Dynkin diagrams using the technique here and the dynkin-diagrams LaTeX package. PNG of ADE diagrams with transparent background PNG of BCFG diagrams with transparent background


3

Yes. Do not type the \textsc part into your answer, and if you copy-paste, then remove it. If you want a less-manual hack, go to the start of your text: M-x replace-regexp <RET> \\textsc{\([^\}]*\)} <RET> \1 <RET> This should do the trick.


5

You can define macros in MathJax. As far as I can tell, you cannot use numbers in macro names. For example, this defines a macro called \Rsq which then types $\newcommand{\Rsq}{\mathbb R^2}\Rsq$. $\newcommand{\Rsq}{\mathbb R^2}$ $\Rsq$ Macros can also use parameters. For example, the macro define below can be used as $\newcommand{\Map}[3]{{#1}\colon{#2}\to{...


1

If you just want to make the fraction smaller, you can write: \tfrac M N $$ \tfrac M N \quad \text{versus} \quad \frac M N $$


0

On the mac I use Macdown: https://macdown.uranusjr.com/ The only problem I have is that it sometimes hangs with a spinning beachball. It will continue after 10 or more seconds - I just have to wait it out.


3

Here is an alternative site that converts $\LaTeX$ equations to images. It documents the available commands much better than Roger's does (some of his links are 404). In any case the command \frac can be replaced by \tfrac, producing a better vertical spacing that I think will satisfy you:


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