RootIntervals

RootIntervals[{poly1, poly2, ...}] gives a list of isolating intervals for the real roots of any of the polyi, together with a list of which polynomials actually have each successive root.

• RootIntervals[poly] gives isolating intervals for real roots of a single polynomial.
• RootIntervals[polys, Complexes] gives bounding rectangles for complex roots.

Examples

RootIntervals[x^2 - 2]

RootIntervals[{x^2 - 2, x^2 - 3}]

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