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How do I produce this Greek letter koppa: Ϟ in pdfLaTeX?

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6

1

I have been trying to typeset the character GREEK LETTER KOPPA. It has not been working. I know the Unicode number (U+03DE), and tried the command ^^3de and ^^3DE. Neither worked. I also tried char and char", but those didn't work either, other symbols get produced.

Does anybody have an idea as to how I can get my computer to typeset the symbol Ϟ?

MWE:

documentclass[a4paper, 12pt]{article}  

usepackage[ngerman, polutonikogreek]{babel}  

usepackage[T1]{fontenc}  

usepackage[utf8]{inputenc}  

usepackage{arevmath}  

usepackage{lmodern}  

fontfamily{lmr}selectfont  

usepackage{geometry}  

 geometry{  

 a4paper,  

 top=30mm,  

 left=25mm,  

 right=20mm,  

 bottom=20mm,  

 }  



begin{document}  

selectlanguage{ngerman}  



$Koppa$  



end{document}

pdftex greek

share|improve this question

edited 17 mins ago

200_success

1154

asked 6 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Do you use either LuaLaTeX or XeLaTeX?
  
  – Mico
  4 hours ago
  

  
  
  
  

add a comment | 

6

1

I have been trying to typeset the character GREEK LETTER KOPPA. It has not been working. I know the Unicode number (U+03DE), and tried the command ^^3de and ^^3DE. Neither worked. I also tried char and char", but those didn't work either, other symbols get produced.

Does anybody have an idea as to how I can get my computer to typeset the symbol Ϟ?

MWE:

documentclass[a4paper, 12pt]{article}  

usepackage[ngerman, polutonikogreek]{babel}  

usepackage[T1]{fontenc}  

usepackage[utf8]{inputenc}  

usepackage{arevmath}  

usepackage{lmodern}  

fontfamily{lmr}selectfont  

usepackage{geometry}  

 geometry{  

 a4paper,  

 top=30mm,  

 left=25mm,  

 right=20mm,  

 bottom=20mm,  

 }  



begin{document}  

selectlanguage{ngerman}  



$Koppa$  



end{document}

pdftex greek

share|improve this question

edited 17 mins ago

200_success

1154

asked 6 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Do you use either LuaLaTeX or XeLaTeX?
  
  – Mico
  4 hours ago
  

  
  
  
  

add a comment | 

I have been trying to typeset the character GREEK LETTER KOPPA. It has not been working. I know the Unicode number (U+03DE), and tried the command ^^3de and ^^3DE. Neither worked. I also tried char and char", but those didn't work either, other symbols get produced.

Does anybody have an idea as to how I can get my computer to typeset the symbol Ϟ?

MWE:

documentclass[a4paper, 12pt]{article}  

usepackage[ngerman, polutonikogreek]{babel}  

usepackage[T1]{fontenc}  

usepackage[utf8]{inputenc}  

usepackage{arevmath}  

usepackage{lmodern}  

fontfamily{lmr}selectfont  

usepackage{geometry}  

 geometry{  

 a4paper,  

 top=30mm,  

 left=25mm,  

 right=20mm,  

 bottom=20mm,  

 }  



begin{document}  

selectlanguage{ngerman}  



$Koppa$  



end{document}

pdftex greek

share|improve this question

edited 17 mins ago

200_success

1154

asked 6 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

documentclass[a4paper, 12pt]{article}  

usepackage[ngerman, polutonikogreek]{babel}  

usepackage[T1]{fontenc}  

usepackage[utf8]{inputenc}  

usepackage{arevmath}  

usepackage{lmodern}  

fontfamily{lmr}selectfont  

usepackage{geometry}  

 geometry{  

 a4paper,  

 top=30mm,  

 left=25mm,  

 right=20mm,  

 bottom=20mm,  

 }  



begin{document}  

selectlanguage{ngerman}  



$Koppa$  



end{document}

share|improve this question

edited 17 mins ago

200_success

1154

asked 6 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 17 mins ago

200_success

1154

asked 6 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 17 mins ago

200_success

1154

edited 17 mins ago

200_success

1154

asked 6 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 6 hours ago

rensemilrensemil

314

5 Answers
5

active

oldest

votes

5

Using arevmath package you have the request symbol.

documentclass{article}

usepackage{arevmath}

begin{document}



$Koppa$



end{document}

share|improve this answer

answered 5 hours ago

SebastianoSebastiano

11.5k42366

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I have tried, and I get the following error message: ! LaTeX Error: Command `qoppa' already defined. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.28 ...Symbol{qoppa}{mathord}{extraitalic}{162} % uni03D9 ?
  
  – rensemil
  5 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil - It looks like you're loading some font-related packages in addition to arevmath. Have you tried not loading arevmath and typing Koppa (in math mode, presumably)?
  
  – Mico
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I know. That error message even occurs if I don't type Koppa in the document. As soon as I add the arevmath package, the error message pops up.
  
  – rensemil
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Mico Thank you very much for your technical support.
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil In my TeX Live installation, a command qoppa is defined by the packages teubner, alphabeta, and boisik, and the Babel language definitions greek, ibygreek, and bgreek, as well as by arevmath. Are you loading any of those?
  
  – zwol
  4 hours ago
  

  
  
  
  

 | 
show 3 more comments

4

If you have a font on your system that you know has that character you can use a package such as fontspec or mathspec to typeset your document (either whole or part, as you prefer) in that font.

share|improve this answer

answered 5 hours ago

MiztliMiztli

2721313

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Unfortunately, I don't know either of those things.
  
  – rensemil
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fair enough. For what it's worth, some Google fonts that support that character are Noto Serif, Cardo and Tinos (all serif; some sans serif ones are Noto Sans, Fira Sans and Arimo).
  
  – Miztli
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Miztli Don't worry I voted the same you for the effort and the correct answer.
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Could you edit your answer to include a MWE (minimal working example)?
  
  – Miztli
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Create a separate very simple (stripped down to the bare bones, including only the packages and content relevant for this issue) version of the code you have, click "edit" below your question and then include it in a code block (use the button with two curly braces).
  
  – Miztli
  4 hours ago
  

  
  
  
  

 | 
show 4 more comments

4

You have it in the cm-unicode fonts, to be used with xelatex. They also have the archaic koppa. If you can type it directly on your keyboard, XeLaTeX will understand it. Other than that I defined two commands to obtain them (note the hexadecimal code is not the official unicode hexadecimal number):

documentclass[12pt]{article}

usepackage{fontspec}

setmainfont{CMU Serif}

defkoppa{char "03DF}

defarchaickoppa{char "03D9}



begin{document}



koppa: qquad LARGEkoppaqquad ϟ



{normalsize archaic koppa: qquad}archaickoppaqquad ϙ





end{document} 

share|improve this answer

edited 4 hours ago

Snobbish Hi-rep users

1438

answered 4 hours ago

BernardBernard

177k779211

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No, where is it?
  
  – rensemil
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Bernard Hi, have you seen my message for vast command?
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil: I think this message is for me. It's unrelated to your question.@Sebastiano>. I've found it this morning (grazie tante!), but didn't have time to look at your link. I've taken alook this evening. It seems to be a command to obtain delimiters still larger than Bigg. I dihad never heard of this construct, but I'm no guru.
  
  – Bernard
  4 hours ago
  

  
  
  
  

add a comment | 

1

Here is one definition that works with the modern toolchain. It requires LuaLaTeX or XeLaTeX and an OpenType or TrueType font containing the glyph.

documentclass[varwidth]{standalone}

usepackage{mathtools}

usepackage{unicode-math}



defaultfontfeatures{Scale = MatchLowercase }

setmainfont{DejaVu Serif}[Scale = 1.0]

setmathfont{TeX Gyre DejaVu Math}



newcommandkoppa{ifmmode%

{mathord{text{^^^^03de}}}else%

^^^^03defi}



begin{document}

Here is the symbol koppa.



( koppa = koppa_{koppa_koppa} )

end{document}

There are other ways to declare the symbol as well, including loading a font containing Ϟ as a symbol alphabet and using DeclareMathSymbol, or loading the symbol in text mode from a newfontfamily declared with fontspec, or defining it with newunicodechar, or loading all Greek letters from that Unicode block with ucharclasses, or finding an OpenType math font that has the glyph, or char"03DE, or symbol{"03DE}.

share|improve this answer

answered 2 hours ago

DavislorDavislor

7,5641433

add a comment | 

0

The problem was the includment of the polutonikogreek package. Without it, everything works just fine.

share|improve this answer

answered 3 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

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5

Using arevmath package you have the request symbol.

documentclass{article}

usepackage{arevmath}

begin{document}



$Koppa$



end{document}

share|improve this answer

answered 5 hours ago

SebastianoSebastiano

11.5k42366

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I have tried, and I get the following error message: ! LaTeX Error: Command `qoppa' already defined. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.28 ...Symbol{qoppa}{mathord}{extraitalic}{162} % uni03D9 ?
  
  – rensemil
  5 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil - It looks like you're loading some font-related packages in addition to arevmath. Have you tried not loading arevmath and typing Koppa (in math mode, presumably)?
  
  – Mico
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I know. That error message even occurs if I don't type Koppa in the document. As soon as I add the arevmath package, the error message pops up.
  
  – rensemil
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Mico Thank you very much for your technical support.
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil In my TeX Live installation, a command qoppa is defined by the packages teubner, alphabeta, and boisik, and the Babel language definitions greek, ibygreek, and bgreek, as well as by arevmath. Are you loading any of those?
  
  – zwol
  4 hours ago
  

  
  
  
  

 | 
show 3 more comments

5

Using arevmath package you have the request symbol.

documentclass{article}

usepackage{arevmath}

begin{document}



$Koppa$



end{document}

share|improve this answer

answered 5 hours ago

SebastianoSebastiano

11.5k42366

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I have tried, and I get the following error message: ! LaTeX Error: Command `qoppa' already defined. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.28 ...Symbol{qoppa}{mathord}{extraitalic}{162} % uni03D9 ?
  
  – rensemil
  5 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil - It looks like you're loading some font-related packages in addition to arevmath. Have you tried not loading arevmath and typing Koppa (in math mode, presumably)?
  
  – Mico
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I know. That error message even occurs if I don't type Koppa in the document. As soon as I add the arevmath package, the error message pops up.
  
  – rensemil
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Mico Thank you very much for your technical support.
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil In my TeX Live installation, a command qoppa is defined by the packages teubner, alphabeta, and boisik, and the Babel language definitions greek, ibygreek, and bgreek, as well as by arevmath. Are you loading any of those?
  
  – zwol
  4 hours ago
  

  
  
  
  

 | 
show 3 more comments

Using arevmath package you have the request symbol.

documentclass{article}

usepackage{arevmath}

begin{document}



$Koppa$



end{document}

share|improve this answer

answered 5 hours ago

SebastianoSebastiano

11.5k42366

documentclass{article}

usepackage{arevmath}

begin{document}



$Koppa$



end{document}

share|improve this answer

answered 5 hours ago

SebastianoSebastiano

11.5k42366

answered 5 hours ago

SebastianoSebastiano

11.5k42366

answered 5 hours ago

SebastianoSebastiano

11.5k42366

4

If you have a font on your system that you know has that character you can use a package such as fontspec or mathspec to typeset your document (either whole or part, as you prefer) in that font.

share|improve this answer

answered 5 hours ago

MiztliMiztli

2721313

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Unfortunately, I don't know either of those things.
  
  – rensemil
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fair enough. For what it's worth, some Google fonts that support that character are Noto Serif, Cardo and Tinos (all serif; some sans serif ones are Noto Sans, Fira Sans and Arimo).
  
  – Miztli
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Miztli Don't worry I voted the same you for the effort and the correct answer.
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Could you edit your answer to include a MWE (minimal working example)?
  
  – Miztli
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Create a separate very simple (stripped down to the bare bones, including only the packages and content relevant for this issue) version of the code you have, click "edit" below your question and then include it in a code block (use the button with two curly braces).
  
  – Miztli
  4 hours ago
  

  
  
  
  

 | 
show 4 more comments

4

If you have a font on your system that you know has that character you can use a package such as fontspec or mathspec to typeset your document (either whole or part, as you prefer) in that font.

share|improve this answer

answered 5 hours ago

MiztliMiztli

2721313

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Unfortunately, I don't know either of those things.
  
  – rensemil
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fair enough. For what it's worth, some Google fonts that support that character are Noto Serif, Cardo and Tinos (all serif; some sans serif ones are Noto Sans, Fira Sans and Arimo).
  
  – Miztli
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Miztli Don't worry I voted the same you for the effort and the correct answer.
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Could you edit your answer to include a MWE (minimal working example)?
  
  – Miztli
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Create a separate very simple (stripped down to the bare bones, including only the packages and content relevant for this issue) version of the code you have, click "edit" below your question and then include it in a code block (use the button with two curly braces).
  
  – Miztli
  4 hours ago
  

  
  
  
  

 | 
show 4 more comments

If you have a font on your system that you know has that character you can use a package such as fontspec or mathspec to typeset your document (either whole or part, as you prefer) in that font.

share|improve this answer

answered 5 hours ago

MiztliMiztli

2721313

share|improve this answer

answered 5 hours ago

MiztliMiztli

2721313

answered 5 hours ago

MiztliMiztli

2721313

answered 5 hours ago

MiztliMiztli

2721313

4

You have it in the cm-unicode fonts, to be used with xelatex. They also have the archaic koppa. If you can type it directly on your keyboard, XeLaTeX will understand it. Other than that I defined two commands to obtain them (note the hexadecimal code is not the official unicode hexadecimal number):

documentclass[12pt]{article}

usepackage{fontspec}

setmainfont{CMU Serif}

defkoppa{char "03DF}

defarchaickoppa{char "03D9}



begin{document}



koppa: qquad LARGEkoppaqquad ϟ



{normalsize archaic koppa: qquad}archaickoppaqquad ϙ





end{document} 

share|improve this answer

edited 4 hours ago

Snobbish Hi-rep users

1438

answered 4 hours ago

BernardBernard

177k779211

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  No, where is it?
  
  – rensemil
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Bernard Hi, have you seen my message for vast command?
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil: I think this message is for me. It's unrelated to your question.@Sebastiano>. I've found it this morning (grazie tante!), but didn't have time to look at your link. I've taken alook this evening. It seems to be a command to obtain delimiters still larger than Bigg. I dihad never heard of this construct, but I'm no guru.
  
  – Bernard
  4 hours ago
  

  
  
  
  

add a comment | 

4

You have it in the cm-unicode fonts, to be used with xelatex. They also have the archaic koppa. If you can type it directly on your keyboard, XeLaTeX will understand it. Other than that I defined two commands to obtain them (note the hexadecimal code is not the official unicode hexadecimal number):

documentclass[12pt]{article}

usepackage{fontspec}

setmainfont{CMU Serif}

defkoppa{char "03DF}

defarchaickoppa{char "03D9}



begin{document}



koppa: qquad LARGEkoppaqquad ϟ



{normalsize archaic koppa: qquad}archaickoppaqquad ϙ





end{document} 

share|improve this answer

edited 4 hours ago

Snobbish Hi-rep users

1438

answered 4 hours ago

BernardBernard

177k779211

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  No, where is it?
  
  – rensemil
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Bernard Hi, have you seen my message for vast command?
  
  – Sebastiano
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @rensemil: I think this message is for me. It's unrelated to your question.@Sebastiano>. I've found it this morning (grazie tante!), but didn't have time to look at your link. I've taken alook this evening. It seems to be a command to obtain delimiters still larger than Bigg. I dihad never heard of this construct, but I'm no guru.
  
  – Bernard
  4 hours ago
  

  
  
  
  

add a comment | 

You have it in the cm-unicode fonts, to be used with xelatex. They also have the archaic koppa. If you can type it directly on your keyboard, XeLaTeX will understand it. Other than that I defined two commands to obtain them (note the hexadecimal code is not the official unicode hexadecimal number):

documentclass[12pt]{article}

usepackage{fontspec}

setmainfont{CMU Serif}

defkoppa{char "03DF}

defarchaickoppa{char "03D9}



begin{document}



koppa: qquad LARGEkoppaqquad ϟ



{normalsize archaic koppa: qquad}archaickoppaqquad ϙ





end{document} 

share|improve this answer

edited 4 hours ago

Snobbish Hi-rep users

1438

answered 4 hours ago

BernardBernard

177k779211

documentclass[12pt]{article}

usepackage{fontspec}

setmainfont{CMU Serif}

defkoppa{char "03DF}

defarchaickoppa{char "03D9}



begin{document}



koppa: qquad LARGEkoppaqquad ϟ



{normalsize archaic koppa: qquad}archaickoppaqquad ϙ





end{document} 

share|improve this answer

edited 4 hours ago

Snobbish Hi-rep users

1438

answered 4 hours ago

BernardBernard

177k779211

edited 4 hours ago

Snobbish Hi-rep users

1438

edited 4 hours ago

Snobbish Hi-rep users

1438

answered 4 hours ago

BernardBernard

177k779211

answered 4 hours ago

BernardBernard

177k779211

1

Here is one definition that works with the modern toolchain. It requires LuaLaTeX or XeLaTeX and an OpenType or TrueType font containing the glyph.

documentclass[varwidth]{standalone}

usepackage{mathtools}

usepackage{unicode-math}



defaultfontfeatures{Scale = MatchLowercase }

setmainfont{DejaVu Serif}[Scale = 1.0]

setmathfont{TeX Gyre DejaVu Math}



newcommandkoppa{ifmmode%

{mathord{text{^^^^03de}}}else%

^^^^03defi}



begin{document}

Here is the symbol koppa.



( koppa = koppa_{koppa_koppa} )

end{document}

There are other ways to declare the symbol as well, including loading a font containing Ϟ as a symbol alphabet and using DeclareMathSymbol, or loading the symbol in text mode from a newfontfamily declared with fontspec, or defining it with newunicodechar, or loading all Greek letters from that Unicode block with ucharclasses, or finding an OpenType math font that has the glyph, or char"03DE, or symbol{"03DE}.

share|improve this answer

answered 2 hours ago

DavislorDavislor

7,5641433

add a comment | 

1

Here is one definition that works with the modern toolchain. It requires LuaLaTeX or XeLaTeX and an OpenType or TrueType font containing the glyph.

documentclass[varwidth]{standalone}

usepackage{mathtools}

usepackage{unicode-math}



defaultfontfeatures{Scale = MatchLowercase }

setmainfont{DejaVu Serif}[Scale = 1.0]

setmathfont{TeX Gyre DejaVu Math}



newcommandkoppa{ifmmode%

{mathord{text{^^^^03de}}}else%

^^^^03defi}



begin{document}

Here is the symbol koppa.



( koppa = koppa_{koppa_koppa} )

end{document}

There are other ways to declare the symbol as well, including loading a font containing Ϟ as a symbol alphabet and using DeclareMathSymbol, or loading the symbol in text mode from a newfontfamily declared with fontspec, or defining it with newunicodechar, or loading all Greek letters from that Unicode block with ucharclasses, or finding an OpenType math font that has the glyph, or char"03DE, or symbol{"03DE}.

share|improve this answer

answered 2 hours ago

DavislorDavislor

7,5641433

add a comment | 

Here is one definition that works with the modern toolchain. It requires LuaLaTeX or XeLaTeX and an OpenType or TrueType font containing the glyph.

documentclass[varwidth]{standalone}

usepackage{mathtools}

usepackage{unicode-math}



defaultfontfeatures{Scale = MatchLowercase }

setmainfont{DejaVu Serif}[Scale = 1.0]

setmathfont{TeX Gyre DejaVu Math}



newcommandkoppa{ifmmode%

{mathord{text{^^^^03de}}}else%

^^^^03defi}



begin{document}

Here is the symbol koppa.



( koppa = koppa_{koppa_koppa} )

end{document}

There are other ways to declare the symbol as well, including loading a font containing Ϟ as a symbol alphabet and using DeclareMathSymbol, or loading the symbol in text mode from a newfontfamily declared with fontspec, or defining it with newunicodechar, or loading all Greek letters from that Unicode block with ucharclasses, or finding an OpenType math font that has the glyph, or char"03DE, or symbol{"03DE}.

share|improve this answer

answered 2 hours ago

DavislorDavislor

7,5641433

documentclass[varwidth]{standalone}

usepackage{mathtools}

usepackage{unicode-math}



defaultfontfeatures{Scale = MatchLowercase }

setmainfont{DejaVu Serif}[Scale = 1.0]

setmathfont{TeX Gyre DejaVu Math}



newcommandkoppa{ifmmode%

{mathord{text{^^^^03de}}}else%

^^^^03defi}



begin{document}

Here is the symbol koppa.



( koppa = koppa_{koppa_koppa} )

end{document}

share|improve this answer

answered 2 hours ago

DavislorDavislor

7,5641433

answered 2 hours ago

DavislorDavislor

7,5641433

answered 2 hours ago

DavislorDavislor

7,5641433

0

The problem was the includment of the polutonikogreek package. Without it, everything works just fine.

share|improve this answer

answered 3 hours ago

rensemilrensemil

314

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rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment | 

0

The problem was the includment of the polutonikogreek package. Without it, everything works just fine.

share|improve this answer

answered 3 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

The problem was the includment of the polutonikogreek package. Without it, everything works just fine.

share|improve this answer

answered 3 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this answer

answered 3 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 3 hours ago

rensemilrensemil

314

New contributor

rensemil is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 3 hours ago

rensemilrensemil

314