Use only \lambda in mathptmx

Question

MWE

\documentclass[border=1mm]{standalone}
\usepackage[T1]{fontenc} 
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
%\usepackage{mathptmx}
\begin{document}

$\lambda = 3.14\ \Omega$
\end{document}

And output

When I added \usepackage{mathptmx}

The following figure is what I try to do. So I want to use only \lambda in mathptm. Is it typographically incorrect? Can you help me?

Note: egreg's solution Not exactly for me.

why the strange markup $\lambda$ = 3.14 $\Omega$ with = not in math? rather than the more standard $\lambda= 3.14 \Omega$ — David Carlisle, Dec 09 '17 at 13:51
@DavidCarlisle When I asked the question, I wrote it like that. I read your warning carefully — Özgür, Dec 10 '17 at 02:51

score 4 · Accepted Answer · answered Dec 09 '17 at 05:03

4

The solution is egreg's solution minus the two letters up (\lambda instead of \uplambda):

\documentclass[border=1mm]{standalone}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}

\DeclareSymbolFont{myletters}{OML}{ztmcm}{m}{it}
\DeclareMathSymbol{\lambda}{\mathord}{myletters}{"15}

\begin{document}
  $\lambda$ = 3.14 $\Omega$
\end{document}

answered Dec 09 '17 at 05:03

Heiko Oberdiek

271,626

I could not believe the answer was that easy. And the result is exactly what I want. – Özgür Dec 09 '17 at 08:32
I look at the entire document. It looks like the lambda looks a bit dark. Can you check? More specifically here, $\lambda = \dfrac{c}{f}$ – Özgür Dec 10 '17 at 15:33
@Özgür What do you expect, when the lambda is taken from a different font? – Heiko Oberdiek Dec 10 '17 at 15:47
You're right. I did not think in that respect. I was so concentrated on the document. – Özgür Dec 10 '17 at 15:56

Use only \lambda in mathptmx

1 Answers1