\documentclass[varwidth=true, border=2pt]{standalone} \usepackage{tikz} \usetikzlibrary{shapes, calc, shapes, arrows} \usepackage{amsmath,amssymb} \usepackage{xcolor} \definecolor{xvectorcolor}{HTML}{77933C} \begin{document} \begin{tikzpicture}[font=\boldmath]\large % Punkte \coordinate (A) at (0,0) {}; \coordinate (B) at (2,0) {}; \coordinate (C) at (1,1) {}; \coordinate (D) at (3,1) {}; % Draw the triangle \draw[thick, blue!25] (B) -- (D) node[sloped,midway,above] {}; \draw[thick, red!25] (C) -- (D) node[sloped,midway,above] {}; \draw[->, ultra thick, red, arrows={-latex}] (A) -- (B) node[sloped,right=-0.3cm, above] {$\mathsf{w}$}; \draw[->, ultra thick, blue, arrows={-latex}] (A) -- (C) node[sloped,midway,above=-0.1cm] {$\mathsf{v}$}; \draw[->, ultra thick, black, arrows={-latex}] (A) -- (D) node[sloped,midway,above=-0.1cm] {$\mathsf{v+w}$}; \begin{scope}[shift={(0,1.5)}] \draw[thick, blue!25] (4,0) -- (5,1) node[sloped,midway,above] {}; \draw[thick, red!25] (1,1) -- (5,1) node[sloped,midway,above] {}; \draw[->, ultra thick, red!25, arrows={-latex}] (0,0) -- (2,0); \draw[->, ultra thick, red, arrows={-latex}] (0,0) -- (4,0) node[sloped,right=-0.7cm,above] {$\mathsf{2 \cdot w}$}; \draw[->, ultra thick, blue, arrows={-latex}] (0,0) -- (1,1) node[sloped,midway,above=-0.1cm] {$\mathsf{v}$}; \draw[->, ultra thick, black, arrows={-latex}] (0,0) -- (5,1) node[sloped,midway,above=-0.1cm] {$\mathsf{v+2 \cdot w}$}; \end{scope} \end{tikzpicture} \end{document}