agraph graphsize=2.0; xscl=1; xyzAchsen( 5, 4, 5.5, 3.5); strokewidth=2; p = [3, -2, 3]; dot( d3(p), "", "P", "leftabove" ); q = [2, -1, 1.5]; //q = [2, 2, -1]; weg( p, "orange"); weg( q, "violet",0.05); stroke="yellow"; gerade( d3(p), d3(q) ); stroke="black"; pfeil([0,0], d3(p)); stroke="red"; pfeil(d3(p), d3(q)); stroke="blue"; moveM([3,-1.5]); endagraph