diff --git a/utils/commands.tex b/utils/commands.tex
index 0020565..a35dba0 100644
--- a/utils/commands.tex
+++ b/utils/commands.tex
@@ -180,29 +180,26 @@
 % example:
 % \begin{tab}{label}{Title}
 %   \begin{tabular}{cc}
-%     \hline
-%     \textbf{1} & \textbf{2} \\ \hline
-%       3 & 4 \\ \hline
+%     \textbf{1} & \textbf{2} \\
+%     3 & 4 \\
 %   \end{tabular}
 % \end{tab}
 % reference later with: \tabref{label}
-\NewDocumentEnvironment{tab}{m m}{% #1 = label, #2 = title
-    \begin{table}%
-        \begin{center}
-            \caption{#2}%
-            \label{tab:#1}%
-            }{%
-        \end{center}%
+\NewDocumentEnvironment{tab}{O{htbp} m m}{% #1 = position, #2 = label, #3 = title
+    \begin{table}[#1]%
+        \centering%
+        \caption{#3}%
+        \label{tab:#2}%
+        }{%
     \end{table}%
 }
 
-\NewDocumentEnvironment{tabwide}{m m}{% #1 = label, #2 = title
-    \begin{table*}%
-        \begin{center}
-            \caption{#2}%
-            \label{tab:#1}%
-            }{%
-        \end{center}%
+\NewDocumentEnvironment{tabwide}{O{htbp} m m}{% #1 = position, #2 = label, #3 = title
+    \begin{table*}[#1]%
+        \centering%
+        \caption{#3}%
+        \label{tab:#2}%
+        }{%
     \end{table*}%
 }