Www.mathjax.org. MathJax basic tutorial and quick reference - Mathematics Meta Stack Exchange. These are issues that won't affect the correctness of formulas, but might make them look significantly better or worse. Beginners should feel free to ignore this advice; someone else will correct it for them, or more likely nobody will care. Don't use \frac in exponents or limits of integrals; it looks bad and can be confusing, which is why it is rarely done in professional mathematical typesetting. Write the fraction horizontally, with a slash: \begin{array}{cc} \mathrm{Bad} & \mathrm{Better} \\ \hline \\ e^{i\frac{\pi}2} \quad e^{\frac{i\pi}2}& e^{i\pi/2} \\ \int_{-\frac\pi2}^\frac\pi2 \sin x\,dx & \int_{-\pi/2}^{\pi/2}\sin x\,dx \\ \end{array} The | symbol has the wrong spacing when it is used as a divider, for example in set comprehensions.
Use \mid instead: \begin{array}{cc} \mathrm{Bad} & \mathrm{Better} \\ \hline \\ \{x|x^2\in\Bbb Z\} & \{x\mid x^2\in\Bbb Z\} \\ \end{array} For double and triple integrals, don't use \int\int or \int\int\int. List of LaTeX symbols - LaTeX Wiki. LaTeX symbols have either names (denoted by backslash) or special characters. They are organized into seven classes based on their role in a mathematical expression. This is not a comprehensive list. Refer to the external references at the end of this article for more information. Class 0 (Ord) symbols: Simple / ordinary ("noun") Edit Latin letters and Arabic numerals Edit Greek letters Lower case Greek letters are rendered in italic font; upper case Greek letters are rendered in upright/Roman. Other alphabetic characters Other simple symbols The following characters don't have any spacing associated with them.
There is also a command \& which is not supported by Wikia's LaTeX parser. Hats, bars, and accents Symbols that go above, below, or in the corners of other symbols. Note 1: dotless i and j (symbols \imath and \jmath) can be used to leave room for whatever hat you want them to wear. The following commands are not supported by the Wikia's LaTeX parser: Fonts Other fonts are... Spaces Arrows. Online LaTeX Equation Editor - create, integrate and download. Detexify LaTeX handwritten symbol recognition. Want a Mac app? Lucky you. The Mac app is finally stable enough. See how it works on Vimeo. Download the latest version here. Restriction: In addition to the LaTeX command the unlicensed version will copy a reminder to purchase a license to the clipboard when you select a symbol.
You can purchase a license here: Buy Detexify for Mac If you need help contact mail@danielkirs.ch. What is this? Anyone who works with LaTeX knows how time-consuming it can be to find a symbol in symbols-a4.pdf that you just can't memorize. How do I use it? Just draw the symbol you are looking for into the square area above and look what happens! My symbol isn't found! The symbol may not be trained enough or it is not yet in the list of supported symbols. I like this. You could spare some time training Detexify. The backend server is running on Digital Ocean (referral link) so you can also reduce my hosting costs by using that referral link. Why should I donate? Hosting of detexify costs some money. No. Yes.