Найду корень уравнения: cos(z)-1 = 0
Перенесём -1 в правую часть ур-ния
с изменением знака при -1
z1 = 6.28318528420851
z2 = 75.3982232188727
z3 = -4.79511606158654e-7
z4 = -18.8495555173448
z5 = -6.28318555849548
z6 = -81.6814084945807
z7 = 31.4159260648825
z8 = -87.9645947692094
z9 = -43.9822967932182
z10 = 56.5486668532011
z11 = 43.9822966661001
z12 = -6.2831851275477
z13 = -12.5663703112531
z14 = 6.28318500093652
z15 = -75.3982238741744
z16 = -50.2654829667315
z17 = -87.964593928489
z18 = 6.28318626747926
z19 = 25.1327408328211
z20 = 94.2477796093523
z21 = 62.8318527849002
z22 = -81.6814075578313
z23 = -94.2477797298079
z24 = -94.2477794452815
z25 = -31.4159260507536
z26 = -62.831852673202
z27 = 100.530965157364
z28 = -43.9822971745392
z29 = 50.2654829439723
z30 = 43.9822974733639
z31 = 37.6991120311338
z32 = 37.6991113348642
z33 = -37.6991121287155
z34 = 69.1150379887504
z35 = 87.9645938121814
z36 = -94.2477801171671
z37 = -31.4159267157965
z38 = -56.5486674685864
z39 = 3.40772025642919e-7
z40 = -87.9645943586158
z41 = -75.3982231045728
z42 = 56.5486682809363
z43 = 81.6814084860076
z44 = 75.3982240031607
z45 = -37.6991113479743
z46 = 69.115038794053
z47 = 87.964594335905
z48 = -75.3982231720141
z49 = 100.530964759815
z50 = 81.6814085860518
z51 = -6.2831858160515
z52 = -18.8495563230046
z53 = -56.5486682426592
z54 = -37.6991118772631
z55 = -43.9822976246252
z56 = 50.2654824463392
z57 = 6.28318579821791
z58 = -50.265482641087
z59 = -50.2654822863493
z60 = 31.4159268459961
z61 = 12.5663710110881
z62 = -31.4159260208155
z63 = 94.2477800892631
z64 = 94.2477792651059
z65 = 43.9822971694647
z66 = -25.1327415297174
z67 = -18.8495552124105
z68 = 18.8495564031971
z69 = 37.6991115173992
z70 = 62.8318535568358
z71 = -62.8318534787248
z72 = 0.0
z73 = 56.5486680806249
z74 = 50.2654821322586
z75 = 25.1327416384075
z76 = -12.5663710889626
z77 = -69.1150379045123
z78 = -81.6814090382277
z79 = 56.5486676011951
z80 = 12.5663711301703
z81 = -81.6814092565354
z82 = 81.6814091897036
z83 = 12.5663704426592
z84 = 87.9645946044253
z85 = -25.1327407505866
z86 = -69.1150386869085
z87 = -100.530964626003
z88 = 18.8495556275525