] gives a list of numerical approximations to the roots of a polynomial equation.
] gives results to n-digit precision.
] gives the same final result as N[Solve[
]], apart from issues of numerical precision.
See the Mathematica book: Section 1.6.3, Section 3.4.2, Section 3.9.1, Section 3.9.5, Section 3.9.5.
See also Implementation NotesA.9.44.23MainBookLinkOldButtonDataA.9.44.23.
See also: Solve, FindRoot, NDSolve.
Related package: NumberTheory`Recognize`.
Here is a degree-10 polynomial.
Although Solve will find all of the solutions in symbolic form, NSolve is the function to use if you ultimately want numerical solutions.
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