Roots

Usage

• Roots[lhsrhs, var] yields a disjunction of equations which represent the roots of a polynomial equation.

Notes

• Roots uses Factor and Decompose in trying to find roots.

• You can find numerical values of the roots by applying N.

• Roots can take the following options:

Cubics	True	whether to generate explicit solutions for cubics
EquatedTo	Null	expression to which the variable solved for should be equated
Modulus	0	integer modulus
Multiplicity	1	multiplicity in final list of solutions
Quartics	True	whether to generate explicit solutions for quartics
Using	True	subsidiary equations to be solved

• Roots is generated when Solve and related functions cannot produce explicit solutions. Options are often given in such cases.

• Roots gives several identical equations when roots with multiplicity greater than one occur.

• Related package: Algebra`RootIsolation`.

• New in Version 1.