(New) Century Schoolbook Font in LuaLaTeX

Question

I recently made the switch to LuaTeX from pdfTeX. Before the switch, I used the fouriernc package to set the document's font to New Century Schoolbook. I've come to understand (from this document) that one should not do this in LuaTeX and should load fontspec and use \setmainfont{<font>}. So, there are two parts to my question:

1. Why is it a bad idea to load fouriernc with LuaTex? I tried compiling in this way and the document compiled successfully with no (visible) problems at all.
2. If it is truly a must that one loads fonts with fontspec, then where can I possibly find New Century Schoolbook (or Century Schoolbook) files? In my MikTeX distribution, I thought I found them in /fonts/tfm/public/fourier, but I always get an error saying that the file cannot be found (yes, I quadruple checked the spelling and path). I should also add I do need this specific font; other Century fonts won't suffice unfortunately.

Many thanks in advance for your help!

Answer 1

You have two possibilities.

1 – Use fouriernc with TeX Gyre Schola as text font

\documentclass{article}

\usepackage{amsmath}
\usepackage{fouriernc}
\usepackage[no-math]{fontspec}

\usepackage{lipsum}

\setmainfont[Scale=0.93]{TeX Gyre Schola}


\begin{document}

\lipsum*[2]
\begin{equation*}
  \widehat{bcd} \ \widetilde{efg} \ \dot A \ \dot R  \ {\ddot A \check t} 
  \  \check{\mathcal{A}}\ \mathbf{\acute \imath}
\end{equation*}
some other text
\begin{equation*}
  \langle a \rangle \left\langle \frac{a}{b} \right\rangle
  \left\langle \frac{\frac{a}{b}}{c} \right\rangle
\end{equation*}
some other text
\begin{equation*}
  (x + a)^n = \sum_{k=0}^n \binom{n}{k} x^k a^{n-k} \quad\text{binomial}
\end{equation*}
square roots
\begin{equation*}
 \sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{2}}}}}} =
 \frac{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{2}}}}}}}}}{\frac{2}{3}}
\end{equation*}
Cardinal numbers and powers
\begin{equation*}
 \aleph_{0}<2^{\aleph_0}<2^{2^{\aleph_0}}\qquad
x^{\alpha} e^{\beta x^{\gamma} e^{\delta x^{\epsilon}}}
\end{equation*}

\end{document}

2 – Use TeX Gyre Schola and TeX Gyre Schola Math

\documentclass{article}

\usepackage{amsmath}
\usepackage{unicode-math}

\usepackage{lipsum}

\setmainfont[Scale=0.93]{TeX Gyre Schola}
\setmathfont[Scale=0.93]{TeX Gyre Schola Math}

\begin{document}

\lipsum*[2]
\begin{equation*}
  \widehat{bcd} \ \widetilde{efg} \ \dot A \ \dot R  \ {\ddot A \check t} 
  \  \check{\mathcal{A}}\ \mathbf{\acute \imath}
\end{equation*}
some other text
\begin{equation*}
  \langle a \rangle \left\langle \frac{a}{b} \right\rangle
  \left\langle \frac{\frac{a}{b}}{c} \right\rangle
\end{equation*}
some other text
\begin{equation*}
  (x + a)^n = \sum_{k=0}^n \binom{n}{k} x^k a^{n-k} \quad\text{binomial}
\end{equation*}
square roots
\begin{equation*}
 \sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{2}}}}}} =
 \frac{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{2}}}}}}}}}{\frac{2}{3}}
\end{equation*}
Cardinal numbers and powers
\begin{equation*}
 \aleph_{0}<2^{\aleph_0}<2^{2^{\aleph_0}}\qquad
x^{\alpha} e^{\beta x^{\gamma} e^{\delta x^{\epsilon}}}
\end{equation*}

\end{document}

Answer 2

Standard pdflatex fonts have some glyphs not there where lualatex expects thems. This doesn't show when the text uses only ascii. But try out this document with lualatex to see the problems with fouriernc:

\documentclass{article}
\usepackage{fouriernc}
\begin{document}
Euro: € Sharp s: ß
\end{document}

Compare it with the fontspec output:

\documentclass{article}
\usepackage{fontspec}
\setmainfont{TeX Gyre Schola}
\begin{document}
Euro: € Sharp s: ß
\end{document}