=$C$6*(SOMME((((($C$3/$C$4)*(H7/$C$4))/(2*PI()))*((1/(RACINE((($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4)))))-(((H7/$C$4)*(H7/$C$4))/((1+(H7/$C$4)*(H7/$C$4))*(RACINE(1+(($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4))))))))+(((H7/$C$4)/(2*PI()*($C$3/$C$4)))*((1/(RACINE(1+((H7/$C$4)*(H7/$C$4)))))-(((H7/$C$4)*(H7/$C$4))/(((($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4)))*(RACINE(1+(($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4))))))))+(((1/(2*PI()))*((ATAN(($C$3/$C$4)/((H7/$C$4)*(RACINE(1+(($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4)))))))+((($C$3/$C$4)*(H7/$C$4))/(RACINE(1+(($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4)))))-((($C$3/$C$4)*(H7/$C$4))/(RACINE((($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4)))))+((H7/$C$4)/(($C$3/$C$4)*(RACINE(1+(($C$3/$C$4)*($C$3/$C$4))+((H7/$C$4)*(H7/$C$4))))))-((H7/$C$4)/(($C$3/$C$4)*(RACINE(1+((H7/$C$4)*(H7/$C$4)))))))))))