NRoots

NRoots[lhs == rhs, var] yields numerical approximations to the roots of a polynomial equation.

Examples

Numeric roots:

NRoots[x^3 - 2 == 0, x]
(* x == 1.26 || x == -0.63 - 1.09 I || x == -0.63 + 1.09 I *)

Quadratic roots:

NRoots[x^2 - 5x + 3 == 0, x]
(* x == 0.697 || x == 4.303 *)

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