This topic has been discussed several times, but amongst all the answers, I couldn't find any suiting my needs.
I'm looking for a way to use greek letters the same way I'd use normal letters, means uppercase as well as lowercase letters should should be italic by default and responsive to the command \mathrm
.
For uppercase greek letters the issue is easy to fix, on the one hand I can use the package isomath
which, however completely breaks something like \mathrm{delta}
(ffi is printed) and on the other hand there is pxgreeks
which is exclusive to pxfonts
-font package which is a requirement I'd like to avoid. \mathrm{delta}
still prints an italic delta in this case
In both cases everything works fine for uppercase greek letters, but it does not work for lowercase greek letters.
So is there any way to make the first line in my MWE to behave exactly like the second line?
(I accept "no" as an answer.)
I was using unicode-math before, where it works out of the box, but as the fonts I'm using are avaiable as non-unicode fonts, I don't want to bother with the slow unicode-math/fontspec anymore.
I try to avoid the use of packages like upgreek
which provides macros like updelta
or pxfonts's deltaup
as I'm cross-using my code in different document classes (article, scrbook, beamer, IEEEtran) with different fonts and I'm always facing incompatibility issues.
A pxfont-specific solution would help me also, though something generic is desirable.
Thank you.
MWE
\documentclass{article}
\usepackage[utf8x]{luainputenc}
\usepackage[T1]{fontenc}
\usepackage{pxfonts}
\usepackage{siunitx}
%\usepackage{isomath}
%\usepackage[ISO]{pxgreeks}
\begin{document}
\begin{equation}
\Phi_{\mathrm{\delta}} = \SI{42}{\micro\Omega} \cdot \delta_{\mathrm{\Phi}}
\end{equation}
\begin{equation}
P_{\mathrm{d}} = \SI{42}{\nano\ampere} \cdot d_{\mathrm{P}}
\end{equation}
\end{document}