diff --git a/LinAlg2.tex b/LinAlg2.tex
index cd2493c..6bbb970 100644
--- a/LinAlg2.tex
+++ b/LinAlg2.tex
@@ -2108,21 +2108,21 @@ Auch skalare Produkte können eindeutig fortgesetzt werden.
 \allowdisplaybreaks
 
 \subsubsection{Veranschaulichung im $\R^2$}
-\begin{tikzpicture}[scale=3]
+\begin{tikzpicture}[scale=3.09]
 	\tikzmath{
 		\a1 = 3;
 		\a2 = 1;
 		\a3 = 2;
 		\a4 = 2;
-		\norma1 = sqrt(\a1^2 + \a2^2);
+		\norma1 = sqrt((\a1 * \a1 + \a2 * \a2));
 		\normeda1 = \a1 / \norma1;
 		\normeda2 = \a2 / \norma1;
-		\innerprod = \normeda1 * \a3 + \normeda2 * \a4;
+		\innerprod = (\normeda1 * \a3) + (\normeda2 * \a4);
 		\c1 = \a3 - (\innerprod * \normeda1);
 		\c2 = \a4 - (\innerprod * \normeda2);
 		\t1 = (\innerprod * \normeda1);
 		\t2 = (\innerprod * \normeda2);
-		\normc = sqrt(\c1^2 + \c2^2);
+		\normc = sqrt((\c1 * \c1 + \c2 * \c2));
 		\b3 = \c1 / \normc;
 		\b4 = \c2 / \normc;
 	}