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 \[InvisibleComma]
  • Alias: ,.
  • Structural element with built-in meaning.
  • \[InvisibleComma] is by default not visible on display, but is interpreted on input as an ordinary comma.
  • \[InvisibleComma] can be used as an invisible separator between indices, as in .
  • See The Mathematica Book:

    Section 1.10.4Section 3.10.5.
  • See also: \[AlignmentMarker], \[Null], \[InvisibleSpace], \[RawComma].