2
\documentclass[hyperref={pdfpagelabels=false}]{beamer}
\usetheme{Madrid}
\usecolortheme{rose}
\usepackage{times}
\usefonttheme{structurebold}
\useinnertheme{rounded}
\usepackage[english]{babel}
\usepackage{epsfig, graphicx}
\usepackage{amsmath,amssymb}
\usepackage[latin1]{inputenc}
\usepackage[framesassubsections]{beamerprosper}
\usepackage{amsfonts}
\usepackage{graphics}
\usepackage{colortbl}
\usepackage[english]{babel}
\beamertemplatetransparentcovereddynamic
\newcommand{\tb}{\textbf}

%\newcommand{\Set}[1]{\{#1\}}

\title[Something]
{\large Something else}


\author[Nick Name]{{\bf{Name}}  \and \\
\vskip 0.5cm
\small{\inst{}\\ School of Mathematics\\ 
University}\\
}
\institute[University]{ \small{  }
}
\date{1st August 2019}

\colorlet{redshaded}{red!25!bg}
\colorlet{shaded}{black!25!bg}
\colorlet{shadedshaded}{black!10!bg}
\colorlet{blackshaded}{black!40!bg}

\colorlet{darkred}{red!80!black} \colorlet{darkblue}{blue!80!black}
\colorlet{darkgreen}{green!80!black}

\def\radius{0.96cm}
\def\innerradius{0.85cm}

\def\softness{0.4}
\definecolor{softred}{rgb}{1,\softness,\softness}
\definecolor{softgreen}{rgb}{\softness,1,\softness}
\definecolor{softblue}{rgb}{\softness,\softness,1}

\definecolor{softrg}{rgb}{1,1,\softness}
\definecolor{softrb}{rgb}{1,\softness,1}
\definecolor{softgb}{rgb}{\softness,1,1}
\definecolor{pink}{rgb}{1,0.5,0.5}
\definecolor{rosa}{rgb}{1.0,0.5,1.0}




\begin{document}
\frame{\titlepage}
\frame{
\[\begin{tikzcd}
F(u) \arrow[dd, "\eta(u)"'] \arrow[rr, "F(\alpha)"] &  & F(v) \arrow[dd, "\eta(v)"] \\
                                                    &  &                            \\
G(u) \arrow[rr, "G(\alpha)"']                       &  & G(v)                      
\end{tikzcd}\]
}
\end{document}

This is the minimal working example. Please let me know why this is not working.

Praphulla Koushik
  • 304
  • I borrowed this code (some years ago and used it atmost 2 times) from some one. Please see if you can make this code cleaner.. – Praphulla Koushik Jul 26 '19 at 15:47
  • In addition to egregs answer just wanted to mention why it fails: tikzcd has to change what & means. However you cannot do that when being used as an argument to a macro, which is why the env version of frame is preferable (plus the env based code is so much easier to read). Note you can make tikzcd work inside the arg to a macro by using the alternative \& syntax. It is just not with it here. – daleif Jul 26 '19 at 16:32
  • @daleif Thanks for the explanation :) – Praphulla Koushik Jul 26 '19 at 17:10

1 Answers1

4

First you have, of course, to load tikz-cd. Then you have two options: either declare the frame to be fragile or use ampersand replacement as shown below.

Avoid the syntax \frame{...} that has less options than \begin{frame}...\end{frame}.

\documentclass[hyperref={pdfpagelabels=false},xcolor={table}]{beamer}
\usetheme{Madrid}
\usecolortheme{rose}
\usefonttheme{structurebold}
\useinnertheme{rounded}

\usepackage[latin1]{inputenc} % <- really?
\usepackage[english]{babel}

\usepackage{graphicx}
\usepackage{amsmath,amssymb}
\usepackage[framesassubsections]{beamerprosper}
\usepackage{tikz-cd}

\beamertemplatetransparentcovereddynamic

\title[Something]{\large Something else}


\author[Nick Name]{{\bf{Name}}  \and \\
\vskip 0.5cm
\small{\inst{}\\ School of Mathematics\\ 
University}\\
}
\institute[University]{ \small{  }
}
\date{1st August 2019}

\colorlet{redshaded}{red!25!bg}
\colorlet{shaded}{black!25!bg}
\colorlet{shadedshaded}{black!10!bg}
\colorlet{blackshaded}{black!40!bg}

\colorlet{darkred}{red!80!black} \colorlet{darkblue}{blue!80!black}
\colorlet{darkgreen}{green!80!black}

\def\radius{0.96cm}
\def\innerradius{0.85cm}

\def\softness{0.4}
\definecolor{softred}{rgb}{1,\softness,\softness}
\definecolor{softgreen}{rgb}{\softness,1,\softness}
\definecolor{softblue}{rgb}{\softness,\softness,1}

\definecolor{softrg}{rgb}{1,1,\softness}
\definecolor{softrb}{rgb}{1,\softness,1}
\definecolor{softgb}{rgb}{\softness,1,1}
\definecolor{pink}{rgb}{1,0.5,0.5}
\definecolor{rosa}{rgb}{1.0,0.5,1.0}




\begin{document}
\begin{frame}
\titlepage
\end{frame}

\begin{frame}[fragile]
\[
\begin{tikzcd}
F(u) \arrow[dd, "\eta(u)"'] \arrow[rr, "F(\alpha)"] &  & F(v) \arrow[dd, "\eta(v)"] \\
                                                    &  &                            \\
G(u) \arrow[rr, "G(\alpha)"']                       &  & G(v)                      
\end{tikzcd}
\]
\end{frame}

\begin{frame}
\[
\begin{tikzcd}[ampersand replacement=\&]
F(u) \arrow[dd, "\eta(u)"'] \arrow[rr, "F(\alpha)"] \&  \& F(v) \arrow[dd, "\eta(v)"] \\
                                                    \&  \&                            \\
G(u) \arrow[rr, "G(\alpha)"']                       \&  \& G(v)                      
\end{tikzcd}
\]
\end{frame}

\end{document}

enter image description here

I have removed the loading of epsfig (deprecated since 1993), amsfonts (that's already loaded by amssymb) and graphics (already loaded by graphicx).

Are you sure your files are encoded with Latin-1? If they are, it's time to move towards UTF-8.

egreg
  • 1,121,712