$MaxExtraPrecision

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

The default value of $MaxExtraPrecision is 50.

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

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

See Section 3.1.5.

See also: $MaxPrecision.

New in Version 3.

Further Examples