• Alias: is. • Spacing character. • \[InvisibleSpace] is by default not visible on display, but is interpreted on input as an ordinary space. • \[InvisibleSpace] can be used as an invisible separator between variables that are being multiplied together, as in . • See also: \[AlignmentMarker] , \[Null] , \[VeryThinSpace] , \[RawSpace] .