# How to use Alegreya Sans for math mode on pdfLaTeX

I tried looking for a way to use Alegreya Sans for math mode in pdfLaTeX. I see that it can be done using mathspec in XeLaTeX, but is there a way to do it in pdfLaTeX?

This is because I'm using Alegreya for body text, and I would like the math to "go" with the text. If this is not possible with pdfLaTeX, I would have to switch to XeLaTeX.

Thank you!

You can use newtxsf for the Greek letters and mathastext:

\documentclass{scrartcl}
\usepackage{newtxsf}
\usepackage[sfdefault]{AlegreyaSans}
\usepackage[italic]{mathastext}

\begin{document}

This is in Alegreya Sans, with math
$E=mc^2$ and $\sin(\alpha+\beta)=\pi$
$\int_{-\infty}^{\infty}e^{-x^2}\,dx=\sqrt{\pi}$

\boldmath Also bold math
$E=mc^2$ and $\sin(\alpha+\beta)=\pi$
$\int_{-\infty}^{\infty}e^{-x^2}\,dx=\sqrt{\pi}$

\end{document}


For serif text and sans serif math (but why?), you can use a trick suggested in the manual of mathastext:

\documentclass{scrartcl}
\usepackage{newtxsf}
\usepackage{Alegreya,AlegreyaSans}

\renewcommand\familydefault\sfdefault
\usepackage[italic]{mathastext}
\renewcommand\familydefault\rmdefault

\begin{document}

This is in Alegreya Sans, with math
$E=mc^2$ and $\sin(\alpha+\beta)=\pi$
$\int_{-\infty}^{\infty}e^{-x^2}\,dx=\sqrt{\pi}$

\boldmath Also bold math
$E=mc^2$ and $\sin(\alpha+\beta)=\pi$
$\int_{-\infty}^{\infty}e^{-x^2}\,dx=\sqrt{\pi}$

\end{document}


• Perfect; thank you! However, this changes all text to Alegreya Sans. I'm using Alegreya for body text and would like to use Alegreya Sans for math. Is this possible? \rmdefault is not a recognised option with Alegreya. – Ram Iyer Oct 8 '16 at 15:19
• @ram7489 Really? What would be the reason for this? However, I added the code. – egreg Oct 8 '16 at 15:27
• I'm writing a book. Serif font makes the text easier to read. Math, however, looks much better with sans serif. Just my opinion, though. – Ram Iyer Oct 8 '16 at 15:28
• Here's a sample of what the math looks like in Alegreya (serif). Not even sure if this is acceptable. – Ram Iyer Oct 8 '16 at 15:35
\documentclass{scrartcl}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage{Alegreya,AlegreyaSans}
\DeclareMathAlphabet{\mathrm}  {T1}{AlegreyaSans-LF}{m}{n}
\SetMathAlphabet{\mathrm}{bold}{T1}{AlegreyaSans-LF}{b}{n}

\DeclareMathAlphabet{\mathit}  {T1}{AlegreyaSans-LF}{m}{it}
\SetMathAlphabet{\mathit}{bold}{T1}{AlegreyaSans-LF}{b}{it}

\DeclareMathAlphabet{\mathbf}  {T1}{AlegreyaSans-Bold-lf-t1}{b}{n}
\SetMathAlphabet{\mathbf}{bold}{T1}{AlegreyaSans-Bold-lf-t1}{b}{n}

\DeclareSymbolFont{operators}  {T1}{AlegreyaSans-LF}{m}{n}
\SetSymbolFont{operators}{bold}{T1}{AlegreyaSans-LF}{b}{n}
\DeclareSymbolFont{letters}    {T1}{AlegreyaSans-LF}{m}{it}
\DeclareSymbolFont{lettersA}   {OML}{zplm}{m}{it}%  for greek letters
\SetSymbolFont{letters}{normal}{T1}{AlegreyaSans-LF}{m}{it}
\SetSymbolFont{letters}{bold}  {T1}{AlegreyaSans-LF}{b}{it}

\DeclareMathSymbol{\alpha}{\mathalpha}{lettersA}{"0B}
\DeclareMathSymbol{\beta}{\mathalpha}{lettersA}{"0C}
\DeclareMathSymbol{\gamma}{\mathalpha}{lettersA}{"0D}
\DeclareMathSymbol{\delta}{\mathalpha}{lettersA}{"0E}
\DeclareMathSymbol{\epsilon}{\mathalpha}{lettersA}{"0F}
\DeclareMathSymbol{\zeta}{\mathalpha}{lettersA}{"10}
\DeclareMathSymbol{\eta}{\mathalpha}{lettersA}{"11}
\DeclareMathSymbol{\theta}{\mathalpha}{lettersA}{"12}
\DeclareMathSymbol{\iota}{\mathalpha}{lettersA}{"13}
\DeclareMathSymbol{\kappa}{\mathalpha}{lettersA}{"14}
\DeclareMathSymbol{\lambda}{\mathalpha}{lettersA}{"15}
\DeclareMathSymbol{\mu}{\mathalpha}{lettersA}{"16}
\DeclareMathSymbol{\nu}{\mathalpha}{lettersA}{"17}
\DeclareMathSymbol{\xi}{\mathalpha}{lettersA}{"18}
\DeclareMathSymbol{\pi}{\mathalpha}{lettersA}{"19}
\DeclareMathSymbol{\rho}{\mathalpha}{lettersA}{"1A}
\DeclareMathSymbol{\sigma}{\mathalpha}{lettersA}{"1B}
\DeclareMathSymbol{\tau}{\mathalpha}{lettersA}{"1C}
\DeclareMathSymbol{\upsilon}{\mathalpha}{lettersA}{"1D}
\DeclareMathSymbol{\phi}{\mathalpha}{lettersA}{"1E}
\DeclareMathSymbol{\chi}{\mathalpha}{lettersA}{"1F}
\DeclareMathSymbol{\psi}{\mathalpha}{lettersA}{"20}
\DeclareMathSymbol{\omega}{\mathalpha}{lettersA}{"21}
\DeclareMathSymbol{\varepsilon}{\mathalpha}{lettersA}{"22}
\DeclareMathSymbol{\vartheta}{\mathalpha}{lettersA}{"23}
\DeclareMathSymbol{\varpi}{\mathalpha}{lettersA}{"24}
\DeclareMathSymbol{\varrho}{\mathalpha}{lettersA}{"25}
\DeclareMathSymbol{\varsigma}{\mathalpha}{lettersA}{"26}
\DeclareMathSymbol{\varphi}{\mathalpha}{lettersA}{"27}
\DeclareMathSymbol{\ldotp}{\mathpunct}{lettersA}{"3A}

\begin{document}\sffamily
sin(x) $E=mc^2$ $\mathit{E=mc^2}$ \itshape E=mc$^2 \sin(x) \alpha\beta$

\upshape\boldmath
sin(x) $E=mc^2$ $\mathit{E=mc^2}$ \itshape\bfseries E=mc$^2 \sin(x) \alpha \beta$

\end{document}


• your solution works perfectly. However, \ldots gives out ::: instead of .... Could you help with that, please? – Ram Iyer Oct 8 '16 at 18:15
• add the line before \begin{document} in my edited answer – user2478 Oct 8 '16 at 18:26