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Symbol -- the class of all symbols
The type Symbol is a member of the class Type.
Each object of class Symbol is called a symbol.
Symbols are entered as an alphabetic character followed by a
sequence of alphanumeric characters; case is significant.
The single symbol character ' is regarded as alphabetic, so that
symbols such as x' may be used.
Symbols are used as names for values to be preserved, as indeterminates
in polynomial rings, and as keys in hash tables. They may have
global scope, meaning they are visible from every line of code,
or local scope, with visibility restricted to a single file or
function body.
i1 : ab12345cde
o1 = ab12345cde
o1 : Symbol |
See also:
Methods for using a symbol :
Fixed objects of class Symbol :
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