演示文稿显示问题

Question

我正在尝试用乳胶创建一个演示文稿，并具有以下内容

\documentclass[11pt]{beamer}
\usetheme{Madrid}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage{graphicx}
\author{Anthony Robinson}
\title{Irrational and Transcendental Numbers}
\subtitle{Mathematics Project}
%\logo{}
\institute{University of Lincoln School of Maths and Physics}
\date{April 30, 2019}
%\subject{}
%\setbeamercovered{transparent}
%\setbeamertemplate{navigation symbols}{}

\begin{document}

    \maketitle

    \begin{frame}{Summary}
        \begin{itemize}
            \item A rational number is a number which can be expressed in the form $\frac{a}{b}$ for $a,b\in \mathbb{Z}$. If a number cannot be expressed in this form it is said to be irrational, e.g. $\sqrt{2}$ or $\pi$.
            \item An algebraic number is a number that can be expressed as the root of a polynomial with integer coefficients, i.e. if a number $z$ is the root of $$a_0 + a_1x + a_2x^2 + a_3x^3 +\dots+a_nx^n=0 \quad \text{where}\quad a_i \in \mathbb{Z}\forall i$$ the $z$ is said to be algebraic of degree $n$. If a number is not algebraic then it is said to be transcendental. 
        \end{itemize}
    \end{frame}

    \begin{frame}{Important note}
        It is possible for a number to be irrational but not transcendental, e.g. $\sqrt{2}$ is irrational (this is proved later) but is algebraic as it is the root of the polynomial $x^2-2=0$.
    \end{frame}

    \begin{frame}{Important Results}

    \end{frame}

\end{document}

问题在于，在幻灯片的输出中，在底部的横幅中，显示了一个括号（，然后是“林肯大学”。

我如何去掉括号，或者去掉“林肯大学”部分。

这是我第一次尝试用乳胶创建演示文稿，因此非常感谢任何帮助。

先感谢您

Answer 1

你问，

我怎样才能去掉......“林肯大学”部分（在横幅中）？

你需要改变

\institute{University of Lincoln School of Maths and Physics}

到

\institute[]{University of Lincoln School of Maths and Physics}

默认情况下，与研究所相关的信息的“简短”版本等于花括号中的材料，即 的主要参数\institute。可选的简短版本是放在方括号中的内容。通过将没有什么方括号内的内容不会传递到页面底部显示的横幅行。

以下屏幕截图显示了文档重新编译后的横幅行：

Answer 2

主题Madrid 使用infolines外部主题，其中定义了脚注的内容。在原始定义（从中复制）中，beamerouterthemeinfolines.sty您可以找到以下行：

\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}% \usebeamerfont{author in head/foot}\insertshortauthor\expandafter\ifblank\expandafter{\beamer@shortinstitute}{}{~~(\insertshortinstitute)}

将作者姓名和机构名称插入到脚注最左侧的彩色框中。

为了删除该机构的名称，您可以按如下方式重新定义脚注：

\documentclass[11pt]{beamer}
\usetheme{Madrid}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage{graphicx}
\author{Anthony Robinson}
\title{Irrational and Transcendental Numbers}
\subtitle{Mathematics Project}
%\logo{}
\institute{University of Lincoln School of Maths and Physics}
\date{April 30, 2019}
%\subject{}
%\setbeamercovered{transparent}
%\setbeamertemplate{navigation symbols}{}

\makeatletter
\setbeamertemplate{footline}
{
  \leavevmode%
 \hbox{%
  \begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
    \usebeamerfont{author in head/foot}\insertshortauthor\expandafter
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
    \usebeamerfont{title in head/foot}\insertshorttitle
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,right]{date in head/foot}%
    \usebeamerfont{date in head/foot}\insertshortdate{}\hspace*{2em}
    \usebeamertemplate{page number in head/foot}\hspace*{2ex} 
  \end{beamercolorbox}}%
  \vskip0pt%
}
\makeatother

\begin{document}

    \maketitle


\end{document}