Hence, in order to add normal text, we need special commands such as \text, \textrm, \mbx and \textnormal. Hi Roederer, The overline on u would be there due to the fonts being used during the LaTeX interpreter. In the present form, LaTeX does not know that it corresponds to a specific math notation, you have to tell it that the letters go together and they should not be italicized as usual variables. Don't (don't you dare) use math mode for italics. LaTeX forum Text Formatting How to have Italic AND bold, in math mode ? These can be different to math italic letters depending on the specific class used. As mentioned in the comments, \mathrm{f}will insert a letter from the text font as a math symbol. bold, italic, enumerations, .) Copy. \mathcal {R} will give . or \mathrm {. In LaTeX math mode, spaces are overlooked, and letters are rendered in italics. \mathsf {.} It can be used for uppercase letters only, such as for identifying real numbers. It's an awfully simple rule: Don't put words (of more than one letter) in pure math mode. For this, you need to encapsulate the expression with \mathrm {} like below: Theme. Visit Stack Exchange Tour Start here for quick overview the site Help Center Detailed answers. The font type LaTeX uses in math mode is somewhat special since it is optimized for writing mathematical formulas. This gives sans serif letters in math mode. Link. These can be different to math italic letters depending on the specific class used. This will give text italic letters. You need to either escape the backslash so that it gets passed through to . xlabel ( ['$ (\mathrm {\overline {u}}) (m/s)$'],'interpreter','latex . communities including Stack Overflow, the largest, most trusted online community for developers learn, share their knowledge, and build their careers. However, you need to change the upright math alphabet to notice any difference in appearance. }, the latter being used predominantly for typesetting units or symbols and not pure text (since it gobbles spaces that are not escaped). In certain cases it may be desirable to include "normal text" within an equation. LaTeX math mode and italics. \mathsf {.} This will give text italic letters. \mbox {.} This gives sans serif letters in math mode. You'll notice that the upright letters are the same as from the text font. Italicized text To make a text italic is straightforward, use the \emph or \textit command: Some of the greatest discoveries in science were made by \emph{ accident } . This post discusses these methods and highlight the difference through illustrative examples. is another alternative to \textrm {. It is sometimes useful to add text in Latex formulas or equations. Information and discussion about LaTeX's general text formatting features (e.g. However, it is clear that the text in question is displayed in italics. \mathit {.} For example, when using those old commands you can't apply both italics and bold at the same time. 3. This should be carved into the monitor of every mathematician and (particularly) computer scientist who ever wrote a paper in LaTeX. There is a simple way to add "normal text" fragments in math mode. Letters are printed in italics, with more space left in-between, spaces are ignored. 1 on a case-by-case basis, it is possible to typeset text within math mode using \textrm {.} But there's a way out if you want the interpreter to use a non-italic font. Here's an example set in ISO style in legacy NFSS mode. unicode-math package distinguishes between text letters in math mode ( \mathrm ) and upright math symbols ( \symup However, you need to change the upright math alphabet to notice any difference in appearance. \mathit {.} This is a special calligraphic font in math mode. There are two issues here, one of which is simpler to fix than the other: the first issue is that the "\b" in your string literal will be interpreted as a Python-level string escape: "\b" is an ASCII backspace character, in the same way that "\t" is a tab character. How to put text in math and what is the way of embedding text into math mode: \textrm , \text This is a special calligraphic font in math mode. Open this LaTeX fragment in Overleaf. \mathcal {R} will give . - Corentin It can be used for uppercase letters only, such as for identifying real numbers. 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