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\cos 等不使用正确的字体（beamer 类）

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\cos 等不使用正确的字体（beamer 类）

我正在尝试在 latex 演示文稿中使用 Palatino 和 EulerVM（使用 beamer）。但是，在我的 \align 环境中\cos无法正确显示。它使用不同的字体，因此太大了。

这是一个 MWE，你可以明白我的意思

\documentclass[xcolor=x11names,compress]{beamer}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% General Setup


\usepackage{palatino}
\usepackage[T1,small,euler-digits]{eulervm}
\usepackage{bm}



%% Beamer Layout %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\useoutertheme[subsection=false,shadow]{miniframes}
\useoutertheme[subsection=false]{miniframes}
\useinnertheme{default}
\usefonttheme{serif}

\usefonttheme{professionalfonts}

\setbeamertemplate{navigation symbols}{}

\setbeamerfont{title like}{shape=\scshape}
\setbeamerfont{frametitle}{shape=\scshape}

\setbeamercolor*{lower separation line head}{bg=DeepSkyBlue4} 
\setbeamercolor*{upper separation line foot}{bg=DeepSkyBlue4}

\setbeamercolor*{normal text}{fg=black,bg=white} 
\setbeamercolor*{alerted text}{fg=Firebrick4} 
\setbeamercolor*{example text}{fg=black} 
\setbeamercolor*{structure}{fg=black} 

\setbeamercolor{block title}{use=structure,fg=white,bg=DeepSkyBlue4}
\setbeamercolor{block body}{use=structure,fg=black,bg=DeepSkyBlue4!10!white}


\setbeamercolor*{palette tertiary}{fg=black,bg=black!10} 
\setbeamercolor*{palette quaternary}{fg=black,bg=black!10} 












%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Begin Document



\begin{document}


\begin{frame}{Apply L\"owdin partitioning to ET - Results}
    \begin{block}{Test}
        \begin{align*}
            E[\sigma_1,\sigma_2,\sigma_3]=& E_0[\sigma_1,\sigma_2] \notag\\
                &+\cos(\phi)E_{\cos(\phi)}\notag\\
                &+\cos^2(\phi)E_{\cos^2(\phi)}\notag\\
                &+\sin(\phi)E_{\sin(\phi)}+\mathcal{O}(V^4)
        \end{align*}
    \end{block}
\end{frame}


\end{document}

答案1

使用serif类内的选项：

\documentclass[xcolor=x11names,compress,serif]{beamer}

另外，要对齐，请使用&=。

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