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I am trying to get a slanted version of the more "typical" lambda symbol:

enter image description here

Following this post was very helpful to substitute only this particular symbol. My only issue is having it slanted...

f.sol
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  • Could italic be accepted as slanted? https://osl.ugr.es/CTAN/fonts/greek/gfs/gfsartemisia/doc/ArtemisiaSpecimen.pdf – Fran Jun 13 '20 at 11:09
  • See also http://ctan.javinator9889.com/fonts/greek/gfs/gfsneohellenic/doc/NeohellenicSpecimen.pdf – Fran Jun 13 '20 at 11:16
  • And the CB-Fonts (cbgreek or cbfonts) have slanted version: https://osl.ugr.es/CTAN/fonts/greek/cbfonts/cbgreek.pdf – Fran Jun 13 '20 at 11:17
  • Thanks, I don't really see a character that looks like the one above but slanted. I am not sure I full understand the approach from @cfr here https://tex.stackexchange.com/questions/290165/how-do-i-get-a-nicer-lambda but he substitutes from txmia(?) Are there slanted characters in txmia? – f.sol Jun 13 '20 at 11:38

2 Answers2

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The glyph in the TX fonts is essentially the same as in Adobe Symbol. In TeX Live (but I believe also in MiKTeX), the slanted version is available as psyro. All it takes is to find the right slot, which turns out to be "6C.

I added also the upright version for comparison.

\documentclass{article}
\usepackage{pifont}

\makeatletter
\newcommand\Pimathsymbol[3][\mathord]{%
  #1{@Pimathsymbol{#2}{#3}}}
\def@Pimathsymbol#1#2{\mathchoice
  {@Pim@thsymbol{#1}{#2}\tf@size}
  {@Pim@thsymbol{#1}{#2}\tf@size}
  {@Pim@thsymbol{#1}{#2}\sf@size}
  {@Pim@thsymbol{#1}{#2}\ssf@size}}
\def@Pim@thsymbol#1#2#3{%
  \mbox{\fontsize{#3}{#3}\Pisymbol{#1}{#2}}}
\makeatother


% the upright lambda
\DeclareFontFamily{U}{psyr}{}
\DeclareFontShape{U}{psyr}{m}{n}{<-> psyr }{}
\newcommand{\pilambdaup}{\Pimathsymbol[\mathord]{psyr}{"6C}}
% the slanted lambda
\DeclareFontFamily{U}{psyro}{}
\DeclareFontShape{U}{psyro}{m}{n}{<-> psyro }{}
\newcommand{\pilambdait}{\Pimathsymbol[\mathord]{psyro}{"6C}}


\begin{document}


$\pilambdaup\ne\pilambdait$


\end{document}

enter image description here

On the other hand, I do not find the glyph particularly attractive, nor “more typical”: any “lambda” glyph will convey the same idea.

Code from https://tex.stackexchange.com/a/290171/4427 and https://tex.stackexchange.com/a/14406/4427

egreg
  • 1,121,712
  • Thanks! This looks exactly like what I am looking for! But for some reason I get different symbols (see link, left for upright, right for italics) link – f.sol Jun 14 '20 at 15:16
  • BTW, I agree that any lambda would convey the same idea. Though, my document strongly refers to a regulatory framework with extensive documentation and reporting and I would really like to stick with the stylistic "rules" and decisions taken there. For consistency. – f.sol Jun 14 '20 at 15:22
  • Ok, my wrong! My editor replaced " with two single '... It works!!! Thanks! – f.sol Jun 14 '20 at 15:31
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In the modern toolchain, with unicode-math, you can substitute this glyph from a different font.

\documentclass{article}
\usepackage{unicode-math}

\setmainfont{TeX Gyre Termes}
\setmathfont{TeX Gyre Termes Math}
\setmathfont{XITS Math}[range=\mitlambda,Scale=MatchLowercase]


\pagestyle{empty}


\begin{document}
[ \lambda ]
\end{document}

XITS Math sample

Davislor
  • 44,045