`vec(BM) =1/2*vec(BD)` und `vec(AC) = k*vec(AM)` mit `k > 1` und `vec(AC)*vec(BD) = 0` | agraph ymin=-3.5; height=150; noaxes(); path([ [0,-3], [2,0], [0,1], [-2,0], [0,-3], ]); stroke="orange"; line( [-2,0],[2,0],"", "o-o" ); line( [0,-3],[0,1],"", "o-o" ); text( [0,-3], "A", "right" ); text( [2,0], "B", "right" ); text( [0,1], "C", "rightabove" ); text( [-2,0], "D", "left" ); text( [0,0], "M", "rightbelow" ); endagraph |