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FilledSmallSquare$MaxExtraPrecision gives the maximum number of extra digits of precision to be used in functions such as N.

FilledSmallSquare The default value of $MaxExtraPrecision is 50.

FilledSmallSquare You can use Block[$MaxExtraPrecision = n, expr] to reset the value of $MaxExtraPrecision temporarily during the evaluation of expr.

FilledSmallSquare$MaxExtraPrecision is used implicitly in various exact numerical computations, including equality tests, comparisons and functions such as Round and Sign.

FilledSmallSquare See The Mathematica Book: Section 3.1.5.

FilledSmallSquare See also: $MaxPrecision.

Further Examples