I have difficulty in the use of pb-diagram package. I want to be like the output below. Please heip me! Thank you very much!
1 Answer
A few minutes with tikz-cd; much better quality than with pb-diagram and much easier syntax.
\documentclass{article}
\usepackage{amsmath,amssymb}
\usepackage{tikz-cd}
\newcommand{\id}{\mathit{id}}
\begin{document}
\begin{tikzcd}
& A\otimes A \arrow[dd,"m"] \\
k\otimes A \arrow[ur,"u\otimes\id"] \arrow[dr,"s"] &&
A\otimes k \arrow[ul,swap,"\id\otimes u"] \arrow [dl,swap,"s"] \\
& A
\end{tikzcd}
\bigskip
\begin{tikzcd}[column sep=4em,row sep=3em]
\mathbb{K}\otimes C &
C\otimes C \arrow[l,swap,"\varepsilon_C\otimes\mathbf{1}_C"]
\arrow[r,"\mathbf{1}_C\otimes\varepsilon_C"] &
C\otimes\mathbb{K} \\
& C \arrow[ul,swap,"\sim"]
\arrow[u,"\Delta_C" description]
\arrow[ur,"\sim"]
\end{tikzcd}
\bigskip
\begin{tikzcd}[column sep=3em,row sep=3em]
C\otimes C\otimes C & C\otimes C \arrow[l,swap,"\Delta\otimes\id"] \\
C\otimes C \arrow[u,"\id\otimes\Delta"] &
C \arrow[l,"\Delta"] \arrow[u,swap,"\Delta"]
\end{tikzcd}
\bigskip
\begin{tikzcd}
& C\otimes C \arrow[dl,swap,"\varepsilon\otimes\id"]
\arrow[dr,"\id\otimes\varepsilon"] \\
k\otimes C && C\otimes k \\
& C \arrow[ul,"{-}\otimes 1"]
\arrow[uu,"\Delta"]
\arrow[ur,swap,"1\otimes{-}"]
\end{tikzcd}
\end{document}
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@tranhoang10 If this answer is enough for you, please accept it in order to close this post. This will give egreg some reputation points as kind of 'thank you' or reward. If this answer is not what you have been looking for, please update your question!– LaRiFaRiDec 19, 2016 at 11:22
tikz-cdfor commutative diagrams. Could you post a Minimum Working Example (MWE) of what you have tried so far? A MWE is a compilable document that starts with\documentclassshows some relevant code of what you have tried so far and ends with\end{document}.