=SI(J2=L2;"ð";SI(J2>L2;"ö";"ø"))
=INDEX('positions tables'!$J$2:$J$33;EQUIV(GRAPHIQUE!$A2;'positions tables'!D$2:D$33;0))
=INDEX('positions tables'!$J$2:$J$33;EQUIV(GRAPHIQUE!$A2;'positions tables'!E$2:E$33;0))
=SIERREUR(ENT((INDEX('positions tables'!$A:$A;EQUIV($A2;DECALER('positions tables'!$D:$D;;NB.SI(B$1:$C1;"*"&"OBSV"&"*")-1);0);1)-1)/4)+1;"")