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36 votes
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Laplace's Equation Symbol

here an example: \documentclass[border=10mm]{standalone} \begin{document} \begin{equation} \nabla (fg)= f\nabla g + g \nabla f \end{equation} \end{document} it yields: if this does not work ...
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35 votes

How to write capital alpha?

If you're using LuaLaTeX or XeLaTeX, you can use the unicode-math package. It defines all uppercase Greek letters: \documentclass{article} \usepackage{unicode-math} \begin{document} $\Alpha+\Beta=\...
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28 votes

Upright Greek font fitting to Computer Modern

Here, I take Bruno's answer at Shear transform a "box", and use it to unslant the computer-modern greek letters. I introduce \unslant[slant]{math-symbol}, where the default value of unslant ...
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28 votes
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How to temporarily replace Latin characters with Greek

Fill in the table: \documentclass{article} \newcommand{\greek}[1]{\begingroup\setuplatintogreek#1\endgroup} \newcommand{\setuplatintogreek}{% \mathcode`a=\alpha \mathcode`b=\beta \mathcode`g=\...
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18 votes
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Why can't I get a bold Greek letter?

You can use the bm-package \documentclass[paper=a4, fontsize=12pt]{article} % A4 paper and 11pt % font size \usepackage[english]{babel} % English language/hyphenation \usepackage{amsmath,amsfonts,...
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16 votes
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How do I write "amartia" in polytonic Greek

Load babel for polytonic Greek. Depending on your preferences, you can use the transliteration or direct input. \documentclass{article} \usepackage[utf8]{inputenc} \usepackage[greek.polutoniko,...
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15 votes

Alternate Greek symbols

There are several packages that render slightly different Greek letters, such as the upgreek package. You can check this and many more in the Comprehensive LaTeX Symbol Guide, starting from page 90.
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  • 362
15 votes
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Problem with inserting the symbols \times and \omega when using arabi package

I don't know whether this fact is documented (I can't see it in the manual, though), but the arabicfnt.sty that's automatically loaded has \DeclareRobustCommand{\times}{\fontfamily{artimes}\...
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  • 993k
15 votes

How do I write "amartia" in polytonic Greek

You could load any font which supports these letters with help of the package fontspec (which requires Lua- or XeLaTeX): % arara: lualatex \documentclass{article} \usepackage{fontspec} \begin{...
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14 votes

How to temporarily replace Latin characters with Greek

This is just the kind of problem for which the tokcycle package was made. I've only implemented a handfull of the Greek, but you just need a \tcmapto z\zeta type statement for each new mapping. In ...
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13 votes

Using Greek symbols in section title

Actually, there is nothing special when you want to put a Greek letter in a section name. Simply write in the way you would have written at other places, using math mode. (See the end of the answer ...
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11 votes
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How to make italic greek letter \lambda

Latin Modern math doesn't blend with Times New Roman. You're better using NewTX: \documentclass{article} \usepackage{newtxtext,newtxmath} \begin{document} The text is in Times; $\lambda\lambdaup$. ...
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11 votes
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Problem With Capital Greek Letters

Remove the call of the breqn package. After the operation I get Note that subfigure has been obsolete for several years. The official replacement is subfig. Alternatively, use subcaption. Note that ...
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  • 993k
11 votes
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Is there an upside-down version of the symbol for $\pi$?

You can create upside-down versions of \pi with the help of the \rotatebox and \reflectbox macros of the graphicx package. Two possibilities are shown in the following screenshot. \documentclass{...
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  • 439k
11 votes

How can I get three diacritics on the same Greek letter?

You can use the character combination already provided in the font: \documentclass{article} \usepackage[greek.polytoniko,english]{babel} %\usepackage{fonttable} \DeclareRobustCommand{\...
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  • 993k
11 votes
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A particular big Delta

It is the following Greek character: \varDelta. It requieres amsmath.
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  • 4,498
11 votes
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How to make an epsilon with ebgaramond-maths

You may want to contact the package's author (email is available on the front page of the package's user guide) and ask if the missing \epsilon glyph is a bug. While you're at it, you may also wanto ...
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  • 439k
11 votes

Upside down reversion for a Greek letter

Like this? \documentclass{article} \usepackage{graphics} \begin{document} \[ \Omega\quad\raisebox{\depth}{\scalebox{1}[-1]{$ \Omega $}} \] \end{document} Added: Simpler, the amssymb package ...
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  • 261k
10 votes
Accepted

lgrxenc.def not nound

It's a good question, because the issue can happen to other users. For several years, the only practical way for inputting Greek was through a transliteration table (a for alpha, b for beta, 'a for ...
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  • 993k
10 votes

Alphabet w and little omega: A better way to distinguish?

If using either XeLaTeX or LuaLaTeX is an option for you, you may want to use the Cambria Math font. The following table contrasts the looks of w and \omega, as well as looks of the notoriously-...
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  • 439k
10 votes

Problem with enumeration using greek letters

The \alph counter style uses the old fashioned Greek alphabetic numbering. You can define your own \greekalph macro: \documentclass[12pt]{article} \usepackage[utf8]{inputenc} \usepackage[english,...
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  • 993k
10 votes
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How the get non italic greek letters like siunitx package?

By default siunitx uses here \textmu from the textcomp package: \documentclass[12pt,a4paper]{article} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{amsmath} \usepackage{amsfonts} \...
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10 votes
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Latex custom counters

You was getting an error because of an extra space inside \csname...\endcsname... When you do \csname cs\endcsname you define a control sequence \cs because TeX ignores spaces after control sequence ...
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10 votes
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Problem with Polyglossia setting \textgreek after update to TeX Live 2018

fontspec recently changed the behaviour of \newfontfamily. \newfontfamily<cmd> now throws an error if <cmd> is defined. Earlier \newfontfamily would behave like \setfontfamily behaves now. ...
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  • 159k
10 votes

Is there a package that allows me to write Greek letters without anything else?

Assuming you are using pdfLaTeX, you can load babel and things will 'just work' \documentclass{article} \usepackage[greek]{babel} \begin{document} προσθαφαίρεσις \end{document} For Greek in an ...
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  • 243k
9 votes
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(Dis-)Advantages of typing (polutoniko)greek letters?

There is no difference. The character Σ is translated into \u8:Σ which is a single macro whose name is five character long, because Σ is two byte in UTF-8. This macro, in turn, is translated into \...
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9 votes
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Why are different versions of "theta" used, here?

It's a precise choice of the font designers. The .vf file in this case is gdidotrg6a.vf and running vftovp gdidotrg6a.vf shows (BOUNDARYCHAR O 1) (LIGTABLE (LABEL BOUNDARYCHAR) (LIG C j O 14) ...
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  • 993k
9 votes
Accepted

Replace greek letters with its variants in case unicode-math is used

As can be seen in the answers to your other post, you have to define your symbols after the start of your document. % arara: lualatex \documentclass[a4paper]{article} \usepackage{unicode-math} \...
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