Returns an a-posteriori absolute error bound on the root.

Parameters

index

An int specifying the (0-based) index of the root whose error bound is to be returned.

Return Value

A double representing the error bound on the index-th root.

Remarks

NaN is returned if the corresponding root cannot be represented as floating point due to overflow or underflow or if the roots have not yet been computed.

See Also

ZeroPolynomial Class | Imsl.Math Namespace

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