Geodesic
Selection of roots of trigonometric equations by the spiral method
Vestnik KRAUNC. Fiziko-matematičeskie nauki, Tome 26 (2019) no. 1, pp. 100-109

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In this paper, an effective spiral method is proposed for selecting the roots belonging to a given interval (longer than $2\pi$) when solving trigonometric equations.
Keywords: trigonometric equations, root selection, helix method. 
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     author = {L. D. Ostroverhaya and O. K. Zhdanova},
     title = {Selection of roots of trigonometric equations by the spiral method},
     journal = {Vestnik KRAUNC. Fiziko-matemati\v{c}eskie nauki},
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L. D. Ostroverhaya; O. K. Zhdanova. Selection of roots of trigonometric equations by the spiral method. Vestnik KRAUNC. Fiziko-matematičeskie nauki, Tome 26 (2019) no. 1, pp. 100-109. http://geodesic.mathdoc.fr/item/VKAM_2019_26_1_a9/