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\[CapitalEHat]\[CapitalEta]

CapitalEpsilon

CapitalEpsilon \[CapitalEpsilon]

FilledSmallSquare Aliases: AliasIndicatorEAliasIndicator, AliasIndicatorEpsilonAliasIndicator.

FilledSmallSquare Greek letter.

FilledSmallSquare Not the same as English E.

FilledSmallSquare See The Mathematica Book: Section 3.10.3.

FilledSmallSquare See also: \[Epsilon] .

\[CapitalEHat]\[CapitalEta]