\begin{figure}[htb] \centering \begin{tikzpicture}[sloped,scale=1.5] \draw[-latex](0,0)--(6,0) node[midway, below]{$\vec{x}+\vec{y}$}; \draw[-latex](0,0)--(2,1) node[midway, above]{$\vec{x}$}; \draw[-latex](2,1)--(6,0) node[midway, above]{$\vec{y}$}; \end{tikzpicture} \caption{Vektoraddition} \end{figure}