Bonjour,
Le code suivant fonctionne.
++
\title{test}
\text{a=randint(1..5), randint(1..5)}
\text{b=randint(1..5), randint(1..5)}
\text{script=var board = JXG.JSXGraph.initBoard('jxgbox',{boundingbox: [-20, 20, 20, -20],axis:true});
org = board.create('point', [0,0], {style:10,visible:true,fixed:true,name:' '});
jxgbox_rep1= board.create('point',jxgbox_var1,{style:5,color:'blue',name:'A'});
jxgbox_rep2= board.create('point',jxgbox_var2,{style:5,color:'blue',name:'B'});
var aaa=function(){return (jxgbox_rep1.X()+jxgbox_rep2.X())};
var bbb=function(){return (jxgbox_rep1.Y()+jxgbox_rep2.Y())};
xy=board.create('point',[aaa,bbb],{style:7,color:'green',name:'A+B'});
ax=board.create('arrow',[org,jxgbox_rep1],{strokeColor:'blue'});
ay=board.create('arrow',[org,jxgbox_rep2],{strokeColor:'blue'});
axy=board.create('arrow',[org,xy],{strokeColor:'red'});
ax2=board.create('arrow',[jxgbox_rep1,xy],{strokeColor:'blue',strokeWidth:1,dash:1});
ay2=board.create('arrow',[jxgbox_rep2,xy],{strokeColor:'blue',strokeWidth:1,dash:1});
}
\statement{
Mettre le point A en (\a). Mettre le point B en (\b).
\embed{r1,400x400
jxgbox
\script
jxgbox_var1=[1,2] ;jxgbox_var2=[-2,-3] }
}
\answer{}{\a;\b}{type=jsxgraph}{option=precision=10}