$NumberMarks

$NumberMarks
gives the default value for the option NumberMarks, which specifies whether marks should be included in the input form representations of approximate numbers.

DetailsDetails

  • The default setting for $NumberMarks is Automatic.
  • $NumberMarks=True indicates that should by default be used in all approximate numbers, both machineprecision and arbitraryprecision ones.
  • $NumberMarks=Automatic indicates that should by default be used in arbitraryprecision but not machineprecision numbers.
  • $NumberMarks=False indicates that should by default never be used in outputting numbers.

ExamplesExamplesopen allclose all

Basic Examples  (2)Basic Examples  (2)

The default value of $NumberMarks is Automatic:

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MachinePrecision numbers are shown without a number mark:

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Arbitrary-precision numbers are shown with a mark and the precision:

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Temporarily force machine numbers to be shown with number marks:

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Introduced in 1996
(3.0)