%% auteur : gh

-1 4 setxrange
-1 4 setyrange

/M {3 2} def
/O {0 0} def
/Mx {3 0} def
/My {0 2} def

.25 setlinewidth
quadrillage
.75 setlinewidth
tracerepere

<tex> 
$$
\vec{\imath }
$$ 
</tex> 
0.5 0  [1 1] dctexlabel 

<tex> 
$$
x\vec{\imath }
$$ 
</tex> 
1.5 0  [1.5 1.5] dctexlabel 


<tex> 
$$
\vec{\jmath }
$$ 
</tex> 
0 0.5  [1 1] cltexlabel 
 
<tex> 
$$
y\vec{\jmath }
$$ 
</tex> 
0  1  [1.5 1.5] cltexlabel 
 
<tex> 
$$
\overrightarrow{OM}
$$ 
</tex> 
1.5 1  [1.5 1.5] {30} uctexlabel 

rouge
pointilles

M Mx (-) line
M My (-) line

continu
bleu
1 setlinewidth
O M (->) line
O Mx (->) line
O My (->) line

bleu
continu

noir

16 setfontsize
setTimesItalic
   (Plan vectoriel) -0.9 -0.9 urtext