\documentclass[aspectratio=169]{beamer} \usepackage{amsmath,unicode-math,physics,tensor} \useoutertheme{metropolis} \useinnertheme{metropolis} \usecolortheme{metropolis} \usefonttheme{professionalfonts} \setbeamerfont{title}{size=\Large, series=\bfseries} \setbeamerfont{author}{size=\small} \setbeamerfont{date}{size=\small} \setbeamertemplate{footline}{\vspace*{0.3cm}} \unimathsetup{math-style=ISO, bold-style=ISO, mathrm=sym} \setsansfont{FiraGO}[BoldFont=* SemiBold, Numbers=Monospaced] \setmathfont{Fira Math Regular} \title{Fira Math} \subtitle{Sans-serif font with Unicode math support} \author{Xiangdong Zeng} \date{2018/10/26\quad v0.3.1} \begin{document} \maketitle \begin{frame}[noframenumbering]{General relativity} \begin{itemize} \item Covariant derivative: \[ \nabla \symbf{X} = \tensor{X}{^\alpha_{;\beta}} \pdv{x^\alpha} \otimes \dd{x^\beta} = \qty(\tensor{X}{^\alpha_{,\beta}} + \Gamma^{\alpha}_{\beta\gamma} \, X^\gamma) \, \pdv{x^\alpha} \otimes \dd{x^\beta} \] \item Einstein's field equations: \[ G_{\mu\nu} \equiv R_{\mu\nu} - \frac{1}{2} R g_{\mu\nu} = \frac{8\pi G}{c^4} T_{\mu\nu} \] %\item Conservation of energy and momentum: % \[ \nabla_\beta T^{\alpha\beta} = \tensor{T}{^{\alpha\beta}_{;\,\beta}} = 0 \] \item Schwarzschild metric: \[ c^2 \dd{\tau}^2 = \qty(1-\frac{r_{\mathrm{s}}}{r}) \, c^2 \dd{t}^2 - \qty(1-\frac{r_{\mathrm{s}}}{r})^{-1} \dd{r}^2 - r^2 \underbrace{\qty(\dd{\theta}^2 + \sin^2 \theta \dd{\varphi}^2)}_{\dd{\Omega}^2} \] \item Einstein--Hilbert action: \[ S = \frac{1}{2\kappa} \int R \sqrt{-g} \dd[4]{x} \] \end{itemize} \end{frame} \end{document}