Background
An answer for typing linear-programming questions in mathjax has been added to MathJax basic tutorial and quick reference since one year.
Problem
I attempted to find it by search on this meta site with keyword "linear programming". Unluckily, the search results didn't show the desired MathJax tutorial.
Why is the tutorial hidden from the search result? How can this community wiki (CW) post be improved so that it's searcheable with "linear programming"?
Why this is relevant
Importance of using MathJax for mathematical discourse
- Why use MathJax? It's so slow
- What is the incentive to use MathJax
- Should MathJaX be pointed out to new users?
Exception: It's reported that MathJax's support for commutative diagrams is primitive and AMScd's syntax differs greatly from that of the usual $\rm\LaTeX$ packages that mathematicians usually use. I am not using them, so I can't judge on that.
Benefits of pictures in learning
Scientific researches has shown that human mind perceives images much faster than text. Therefore, A picture is worth a thousand words.
Situation in linear-programming
Despite the possibility of typing tables in MathJax, many users are still posting images like this.
Source: simplex algorithm with tableau
It's quite tedious/difficult to reconstruct a simplex from text in some questions like Minimisation using Simplex Tableau. Due to the amount of effort needed, such questions are less likely to be answered.
IMHO, a nice MathJax template for simplex tableau has the following benefits when compared to images.
\begin{array}{rrrrrr|r} & x_1 & x_2 & s_1 & s_2 & s_3 & \\ \hline s_1 & 0 & 1 & 1 & 0 & 0 & 8 \\ s_2 & 1 & -1 & 0 & 1 & 0 & 4 \\ s_3 & 1 & 1 & 0 & 0 & 1 & 12 \\ \hline & -1 & -1 & 0 & 0 & 0 & 0 \end{array}
- takes up less size (both file size and visual size)
- better resolution
- easier to reproduce and manipulate (with a text editor like Vim, Emacs, etc)
Negative impact of pic questions to the site's SEO
Avoid using pictures as essential part of post is not simply a SE network's policy, but a way to be nice with others, especially to those who use screen readers and to search bots who can't interpret images, such as DuckDuckGo's search bot and Approach0.1 Having pic questions is bad for the site in terms of search engine optimisation (SEO) since there's no relevant keyword for the search bot to grab in a pic question.
Conclusion
- Images convey messages much faster than text.
- They can be used for illustration purposes.
- They are not shortcut to typing math/text.
- Use SE's image uploader instead of external image hosts.
- Text is much better than images in terms of SEO
- Use MathJax if possible
- MathJax tutorial for linear-programming provides templates for LPPs and simplex tableaux.
- Be nice to each other, including those who can and cannot view images
1 With an exception to geometry, visualization like questions due to the subject nature.
[mathjax]
andsimplex
. Note that the tag mathjax rather than the simple search termmathjax
is helpful here because the tags are pulled from the framing Question (and need not be repeated in the post itself). $\endgroup$