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NRoots

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Numerical roots of a polynomial equation

NRoots[lhs == rhs, var]
NRoots[1 + 2x + 3x ^ 2 + 4x ^ 3 == 0, x] → x == -0.605829586188268 || x == -0.07208520690586599 - 0.6383267351483765*I || x == -0.07208520690586599 + 0.6383267351483765*INRoots[x ^ 3 - x ^ 2 - x - 1 == 0, x] → x == -0.4196433776070806 - 0.6062907292071994*I || x == -0.4196433776070806 + 0.6062907292071994*I || x == 1.8392867552141612NRoots[x ^ 3 - 5x ^ 2 + 6x - 1 == 0, x] → x == 0.19806226419516174 || x == 1.5549581320873713 || x == 3.246979603717467
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NSolveRootsSolveFindRootRootIntervals

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