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RootBound

bound on roots of a polynomial over QQ

Syntax
RootBound(F: RINGELEM): INT

Description
This function computes a bound on the absolute values of the complex roots of a univariate polynomial over QQ. In some cases you may get a better bound by applying the transformation produced by LinearSimplify .

Example
/**/  Use R ::= QQ[x,y,z];
/**/  RootBound(x^2-2);
4

See Also