updated setup

UltiSnips/tex.snippets

@@ -170,6 +170,7 @@ snippet makedoc
 \usepackage{hyperref}
 \usepackage{geometry}
 \usepackage{enumerate}
+\usepackage{braket}
 \geometry{left=2.5cm,right=2.5cm,top=2.5cm,bottom=2.5cm}
 
 \title{$1}
@@ -223,3 +224,20 @@ snippet subfigures
 \end{figure}
 
 endsnippet
+
+snippet ketup
+\ket{\uparrow}
+endsnippet
+snippet ketdown
+\ket{\downarrow}
+endsnippet
+
+snippet dmath
+\begin{dmath}
+$1
+\end{dmath}
+endsnippet
+
+snippet ->
+\rightarrow 
+endsnippet