In the android app, looking at Math.SE, the formulas show up as raw (La)?TeX source. These should be rendered so they look look like pretty formulas:  \int_a^b f'(x) dx = f(b) - f(a)  should look like:
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MathJax isn't currently working on the Android app, which makes it totally useless for the 'technical' sites like  or .  For example, in the Android app:    Same post in a (mobile) browser:     Please add this functionality!
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I am looking for something like \fbox but it seems that you cannot use it when a math environment is included. However its not only a math environment (then you could use \boxed I know) but also text, I need to be in a frame.  example:  \rdmframeboxaroundwhatever{  blablabla  \begin{align} Formula of the universe \end{align}   Hoaray  }
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When searching on a site with  enabled (), I saw some  rendering issues: (and currently it's also in the )        Even though the LaTeX rendering is fine when opening the :        The LaTeX code is:  $f(n) = \begin{cases} 0,  &amp; \text{$ \omega&lt;0, \omega=1, \omega&gt;3 $} \\[2ex] -\omega + 1,  &amp; \text{$ 0\le\omega&lt;1 $} \\[2ex] \omega^2 - 1,  &amp; \text{$ 1&lt; \omega \le 2 $} \\[2ex] 3 \omega,  &amp; \text{$2 &lt; \omega \le 3 $} \end{cases}$
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I want to write an equation with bold extended brackets.  For instance in:   \left[ \frac{1}{2} \vec{\nabla} \times \vec{v} \right]   I want \left[ and \right] to be bold. I already tried  nothing is doing the trick.
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(I had a feeling this was a duplicate, but couldn't find an older question about it. Forgive me if I'm just bad at searching.)  Consider the minimal example  \documentclass{article} \usepackage{mathtools} \usepackage{unicode-math} \setmathfont{lmmath-regular.otf} \begin{document} \begin{equation*}   \int f(x) \, \mathrm{d}x \end{equation*} \end{document}   When compiled with lualatex the space between the integral sign and f(x) is too large, larger than what I get if I compile with xelatex (or if I'm not using unicode-math).   With lualatex:       With xelatex:       Without unicode-math:      I'm using a recently updated TeXlive 2011, and the same thing happens with Asana-Math.otf or xits-math.otf as math font. Can this be corrected somehow?
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I would like to write a .pdf, where my readers could copy the rendered formulae and paste them directly in their TeX documents.    And the copied text would automatically be:  \int x\sin ax\;\mathrm{d}x = \frac{\sin ax}{a^2}-\frac{x\cos ax}{a}+C   Is this possible?
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Okay, so $\displaystyle \frac{d}{dx} |x| = \frac{|x|}{x}$. But I have trouble seeing why.  Here's what I've tried: $$\frac{d}{dx}|x|=\begin{cases} \frac{d}{dx}x &amp; \text{if }x &gt; 0 \\ \frac{d}{dx}(-x)&amp;\text{if }x &lt; 0 \end{cases} = \begin{cases} \,\,\,\,1 &amp; \text{if }x &gt; 0 \\ -1&amp;\text{if }x &lt; 0 \end{cases}$$ But I do not see how that far-right expression can be used to arrive at $\displaystyle\frac{|x|}{x}$, besides graphing.
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Is there an option to show the formulas in the text editor (not the PDF on the side) so that the text can be edited while the compiled formulas appear. This option exists in emax-auctex. Does it exist in editors like TeXstudio?
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Currently, , ,  and  have MathJax support which turns LaTeX code into equation. At least on math, occasionally there are users that do not know this feature or don't know it's possible to use LaTeX (MathJax), resulting a badly formatted post. I suggest that there should be a common &quot;LaTeX/MathJax typesetting help&quot; page for those sites that enabled MathJax support, like the  that is present on all sites. Preferably, there should also be a line  LaTeX equations $\sin^2 \theta$  in the &quot;How to Format&quot; on the right hand side. See also:
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Here is the code.  \documentclass{article} \begin{document} \directlua{tex.sprint(tostring(math.sin(math.pi)))} \\ \directlua{tex.sprint(tostring(math.tan(math.pi/2)))} \end{document}   I am expecting the answers as 0 and error . The code above gives some very small and big number. Can I get the expected answers by some modifications in code?
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I would like to label an equation with an arbitrary symbol, rather than a number, or letter.  Is this possible?
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I am using   \begin{equation} a = b \end{equation}   to write the equations in my paper. However, the problem is that the number related to each equation is not shown in the correct format like the picture   How can I fix this?  This is what I have at the first of my code:  \usepackage{graphicx} \usepackage[justification=centering]{caption} \usepackage{float} \usepackage{url}% typeset urls \usepackage{times} \usepackage{url} \usepackage{latexsym} \usepackage{fontspec} \usepackage{multirow} \usepackage{listings} \usepackage{setspace} \usepackage{listings} \usepackage{fontspec} \usepackage{amsmath} \usepackage{polyglossia} \usepackage{color} \usepackage{bidi} \newfontfamily\faFont[Script=Arabic]{Yas}  \newenvironment{Fa}{\begin{RTL}\faFont}{\end{RTL}} \newcommand{\fa}[1]{{\faFont\RL{#1}}} \newcommand\Mark[1]{\textsuperscript#1} \definecolor{backcolour}{rgb}{0.95,0.95,0.92} \definecolor{darkblue}{rgb}{0.95,0.95,0.92} \setmainlanguage{english} \setotherlanguage{farsi} \newfontfamily\farsifont[Script=Arabic]{Yas}
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Stack Exchange formats math, but often the formatted math is wider than the screen. It would be nice if formatted math were scrollable the same way that formatted code wider than the screen is scrollable.
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I need to display the symbol '^'  d &lt;- dist(fascores, method = "euclidean")^2   How do I do that?
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I would like to use the Concrete Math font in LaTeX, which is a bitmap font. The rendering with pdflatex is naturally poor-quality with jagged edges.  My solution so far has been to generate a DVI file and then convert to PDF using Linux's dvipdf. This tool effectively traces and smooths the edges of the glyphs and the end result is beautiful. However, using the DVI output format (with latex) causes a host of other problems with including figures, etc. For instance, you can't include .png or .pdf figures when using plain LaTeX.  Is there a way to somehow get the same bitmap font-smoothing effect in pdflatex? or via an intermediate format that still allows you to include at least .png figures?
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When i put the code $(f_{\mathcal{X}},f_{\mathcal{X}}^{\partial})$ I get the following:  But I want the subscripts to be aligned. How can I do this?
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I'm very familiar with how symbols display differently in inline mode (with $ ... $) vs. how display math shows them (with \[ ... \] or $$ ... $$).  Two examples would be with limits  $\lim_{n\rightarrow \infty}f(x)$   vs.  \[ \lim_{n\rightarrow \infty}f(x) \]   and with sums  $\sum_{n=1}^{x} n^2$   vs.  \[ \sum_{n=1}^{x} n^2 \]   My Question is:     How do you display these things in inline mode (with all the nice inline formatting) as if they were in display mode ?   The inverse -- how to display things in display mode as if they were in inline mode -- is also of interest.