Найду корень уравнения: tg(x/3)=0
с изменением знака при 0
x1 = -75.398223686155
x2 = 103.672557568463
x3 = -28.2743338823081
x4 = 47.1238898038469
x5 = -84.8230016469244
x6 = 56.5486677646163
x7 = 0.0
x8 = -103.672557568463
x9 = 75.398223686155
x10 = -94.2477796076938
x11 = 18.8495559215388
x12 = 94.2477796076938
x13 = -37.6991118430775
x14 = 37.6991118430775
x15 = 84.8230016469244
x16 = 9.42477796076938
x17 = -18.8495559215388
x18 = -56.5486677646163
x19 = -9.42477796076938
x20 = 65.9734457253857
x21 = 28.2743338823081
x22 = -47.1238898038469
x23 = -65.9734457253857