Noqsi
Posts:
44
Registered:
12/8/10
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Re: Mathematica and Lisp
Posted:
Jan 18, 2013 12:50 AM
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On Wednesday, January 16, 2013 9:15:18 PM UTC-7, Richard Fateman wrote:
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> If you want a term rewriting system, several of them (free, open source)
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> have been written in Lisp. Anything that Mathematica can
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> do computationally can be done, in principle, with any "Turing equivalent"
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> programming language, and that includes Lisp.
Sure. You can write a term rewriting system in Cobol if you wish. But then, if you use it to write programs, you're no longer programming in Cobol.
> > f_[whoCalled]^:=f
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> > Sin[whoCalled]
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> Certainly such a feature could be implemented in a pattern-matching
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> system written in Lisp.
But it's not a native construction in Lisp.
> Since most lisp implementations provide
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> many "introspective" features including examining the run-time call
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> stack, I think it would be possible to extract "who called me" from
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> this information of the (complete) call stack.
But you're missing the point: Mathematica does this kind of thing naturally as a consequence of its design. Lisp does not.
> > which yields
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> >
>
> > Sin
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