This is documentation for Mathematica 3, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)
[an error occurred while processing this directive] $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 the Mathematica book: Section 3.1.5.
  • See also: $MaxPrecision.