Найду корень уравнения: tan(x)=-1/3
сумма
0 - atan(1/3)
=
-atan(1/3)
произведение
1*-atan(1/3)
=
-atan(1/3)
x1 = 78.2180657853482
x2 = 27.9525833279115
x3 = -97.7111228156802
x4 = 71.9348804781686
x5 = -69.4367889333721
x6 = 90.7844363997074
x7 = 68.7932878245788
x8 = -82.0031595477313
x9 = 31.0941759815013
x10 = -53.7288256654231
x11 = 21.6693980207319
x12 = 87.6428437461176
x13 = 75.0764731317584
x14 = 40.5189539422707
x15 = -75.7199742405517
x16 = 97.067621706887
x17 = -16.0297138223456
x18 = -38.0208623974742
x19 = 24.8109906743217
x20 = -6.60493586157623
x21 = -31.7376770902946
x22 = -50.5872330118333
x23 = -88.2863448549109
x24 = -60.0120109726027
x25 = 59.3685098638094
x26 = 81.359658438938
x27 = -9.74652851516602
x28 = 46.8021392494503
x29 = 12.2446200599625
x30 = 93.9260290532972
x31 = 37.3773612886809
x32 = 34.2357686350911
x33 = -100.85271546927
x34 = 49.9437319030401
x35 = -85.1447522013211
x36 = 56.2269172102196
x37 = -19.1713064759354
x38 = -0.321750554396642
x39 = 84.5012510925278
x40 = 2.81984209919315
x41 = 15.3862127135523
x42 = -47.4456403582435
x43 = -28.5960844367048
x44 = -44.3040477046537
x45 = 100.209214360477
x46 = -34.8792697438844
x47 = 65.651695170989
x48 = 9.10302740637274
x49 = 53.0853245566298
x50 = -25.454491783115
x51 = -12.8881211687558
x52 = -3.46334320798644
x53 = -22.3128991295252
x54 = 5.96143475278294
x55 = -94.5695301620904
x56 = -63.1536036261925
x57 = -91.4279375085006
x58 = -78.8615668941415
x59 = 62.5101025173992
x60 = -66.2951962797823
x61 = -72.5783815869619
x62 = -56.8704183190129
x63 = -41.162455051064
x64 = 18.5278053671421
x65 = 43.6605465958605