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ScriptA ... ScriptZ ... \[ScriptA] ... \[ScriptZ]
Aliases: sca through scz. Letters. Treated as distinct characters rather than style modifications of ordinary letters. \[ScriptL] is a commonly used form. Contiguous character codes from the private Unicode character range are used, even though a few script characters are included in ordinary Unicode. See The Mathematica Book:
... 
\[ScriptA] ... \[ScriptZ]
sca
is a commonly used form. 
