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by lispm
3282 days ago
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The older Lisp (60 and before) talked about 'atomic symbols'. ATOM checked whether something is an 'atomic symbol'. Cons cells were not atomic symbols. They were pairs. But atomic symbols could be symbols, numbers, functions and variables. Arrays were not there in an explict form and the few data types of Lisp were made of atomic symbols. A number was an atomic symbol where the name starts with a digit and the symbol's assoc list stored the numeric value... See: http://www-formal.stanford.edu/jmc/recursive/node4.html |
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