diff --git a/main/cs.tex b/main/cs.tex
index c225726..4838d92 100644
--- a/main/cs.tex
+++ b/main/cs.tex
@@ -12,7 +12,7 @@
 
 
 \newcommand{\timecomplexity}{\fhlc{orange}{\ifnum\value{lang}<2{Time complexity}\else {Laufzeit}\fi} \hspace{0.5em}}
-\newcommand{\tc}[1]{\timecomplexity $\Theta (#1)$}
-\newcommand{\tct}[1]{$\Theta (#1)$}
-\newcommand{\tco}[1]{$\mathcal{O}(#1)$}
-\newcommand{\tcl}[1]{$\Omega(#1)$}
+\newcommand{\tc}[1]{\timecomplexity $\Theta\left(#1\right)$}
+\newcommand{\tct}[1]{$\Theta\left(#1\right)$}
+\newcommand{\tco}[1]{$\mathcal{O}\left(#1\right)$}
+\newcommand{\tcl}[1]{$\Omega\left(#1\right)$}