Найду корень уравнения: tan(x)=2/3
сумма
0 + atan(2/3)
=
atan(2/3)
произведение
1*atan(2/3)
=
atan(2/3)
x1 = 0.588002603547568
x2 = -43.3942945467095
x3 = -71.6686284290177
x4 = 50.8534850609843
x5 = 82.2694115968822
x6 = 85.411004250472
x7 = -55.9606651610687
x8 = -84.2349990433768
x9 = 22.5791511786761
x10 = 57.1366703681638
x11 = 35.1455217930353
x12 = 19.4375585250863
x13 = 72.8446336361128
x14 = -59.1022578146585
x15 = -27.6863312787606
x16 = -81.0934063897871
x17 = -68.5270357754279
x18 = 69.703040982523
x19 = 10.0127805643169
x20 = 94.8357822112414
x21 = 88.5525969040618
x22 = 44.5702997538047
x23 = 60.2782630217536
x24 = -65.3854431218381
x25 = -40.2527018931197
x26 = 38.2871144466251
x27 = 13.1543732179067
x28 = 6.87118791072715
x29 = -46.5358872002993
x30 = -15.1199606644014
x31 = 28.8623364858557
x32 = 63.4198556753434
x33 = 75.9862262897026
x34 = -33.9695165859402
x35 = -30.8279239323504
x36 = 47.7118924073945
x37 = -62.2438504682483
x38 = -74.8102210826075
x39 = 53.9950777145741
x40 = 25.7207438322659
x41 = 91.6941895576516
x42 = -37.11110923953
x43 = -90.5181843505564
x44 = -18.2615533179912
x45 = -52.8190725074789
x46 = -21.403145971581
x47 = -8.83677535722181
x48 = 97.9773748648312
x49 = -93.6597770041462
x50 = 79.1278189432924
x51 = -99.9429623113258
x52 = -96.801369657736
x53 = -11.9783680108116
x54 = 16.2959658714965
x55 = 41.4287071002149
x56 = 3.72959525713736
x57 = 32.0039291394455
x58 = -2.55359005004223
x59 = -24.5447386251708
x60 = -49.6774798538891
x61 = 66.5614483289332
x62 = 101.118967518421
x63 = -77.9518137361973
x64 = -87.3765916969666
x65 = -5.69518270363202