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arXiv:2407.01827 [math.NA]AbstractReferencesReviewsResources

Cubic equations with 2 Roots in the interval $[-1, 1]$

Helmut Ruhland

Published 2024-07-01Version 1

The conditions for cubic equations, to have 3 real roots and 2 of the roots lie in the closed interval $[-1, 1]$ are given. These conditions are visualized. This question arises in physics in e.g. the theory of tops.

Comments: 9 pages
Categories: math.NA, cs.NA
Subjects: 12D10, 26C10
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