This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
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is an option for InputForm and related functions that specifies whether ` marks should be included in the printed forms of approximate numbers.
  • NumberMarks->True indicates that ` should be used in all approximate numbers, both machine-precision and arbitrary-precision ones.
  • NumberMarks->Automatic indicates that ` should be used in arbitrary-precision but not machine-precision numbers.
  • NumberMarks->False indicates that ` should never be used in outputting numbers.
  • Number marks are used to indicate the type of numbers, and their precision or accuracy.
  • The *^ form for scientific notation is always used in InputForm, and is independent of NumberMarks.
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