NSolve

NSolve[expr, vars] attempts to find numerical approximations to the solutions of the system.

NSolve[expr, vars, Reals] finds solutions over the real numbers.

Examples

Numerical solutions:

NSolve[x^3 - 2 == 0, x]
(* {{x -> 1.2599}, {x -> -0.62996 - 1.0911 I}, {x -> -0.62996 + 1.0911 I}} *)

Real solutions only:

NSolve[x^3 - 2 == 0, x, Reals]
(* {{x -> 1.2599}} *)

Please visit the official Wolfram Language Reference for more details.