Documentation Publicon Reference Special Characters
GothicCapitalA ... GothicCapitalZ
... \[GothicCapitalA] ... \[GothicCapitalZ]
• Aliases: goA through goZ. • Letters. • Treated as distinct characters rather than style modifications of ordinary letters. • is used to denote imaginary part; is used to denote real part. • Used in pure mathematics and theory of computation. • Contiguous character codes from the private Unicode character range are used, even though a few capital gothic characters are included in ordinary Unicode.• See also: \[GothicA] , \[ScriptCapitalA] , \[DoubleStruckCapitalA] , etc.
... 
\[GothicCapitalA] ... \[GothicCapitalZ]
goA
is used to denote imaginary part; 
is used to denote real part. 