x=-5.59813633249477, x= 0.685048974684818, x= 0.524795330444007, x 0.524795330444007, x 0.685048974684818, x=5.59813633249477
x=-5.59813633249477, x= 0.685048974684818, x= 0.524795330444007, x 0.524795330444007, x 0.685048974684818, x=5.59813633249477