I want to sketch this figure..
if you guide me to draw one of this arrows with direction i would be grateful..
tikz-pgf – Sketching Simple Arrows with Different Directions
arrowsdiagramstikz-pgf
Related Solutions
Simply place the specifications at either side of the -: open triangle 90-triangle 45, as in:
\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{arrows}
\begin{document}
\begin{tikzpicture}
\node (a) {A};
\node (b) at (2,0) {B};
\draw[open triangle 90-triangle 45] (a) -- (b);
\end{tikzpicture}
\end{document}
First of all don't use align* for a single object and prefer equation*.
Simple commutative diagrams with the CD environment can have arrows pointing
right
@>>>left
@<<<down
@VVVup
@AAAdouble stem, no arrow head
@=nothing (for filling blanks)
@.
However CD doesn't allow for "double arrows" and you have to go to a more specialized package. For instance xy:
\documentclass{article}
\usepackage{amsmath}
\usepackage[all,cmtip]{xy}
\begin{document}
\begin{equation*}
\xymatrix{
W \ar[r]^{\phi} \ar@<-2pt>[d]_{a} & X \ar@<-2pt>[d]_{c} \\
Y\ar@<-2pt>[u]_{b} \ar[r]^{\phi} & Z \ar@<-2pt>[u]_{d}
}
\end{equation*}
\end{document}
Best Answer
You could use the
tikzpackage and thearrowsanddecorationslibrary to achieve something similar to your drawing.