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  • DigitBlock is an option for NumberForm and related functions which specifies the maximum length of blocks of digits between breaks.
  • The default setting is DigitBlock -> Infinity, which specifies that no breaks should be inserted.
  • DigitBlock -> n inserts a break every n digits.
  • DigitBlock -> nleft , nright inserts a break every nleft digits to the left of the decimal point, and every nright digits to the right of the decimal point.
  • The setting for NumberSeparator determines what string should be used at each break.
  • See the Mathematica book: Section 2.8.7.

    Further Examples

    This puts breaks every 3 digits.