Talk:M-expression

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Mathematica

It is perhaps notable that the computer algebra system Mathematica uses the M-Expression syntax as its "generic" representation of data and functions. —Preceding unsigned comment added by JasticE (talk • contribs) 22:08, 17 November 2004

What is an M-expression

This page doesn't say what an M-expression is. — Preceding unsigned comment added by 81.164.106.200 (talk) 18:42, 14 February 2013 (UTC)[reply]

M-expressions are homoiconic

Given that Lisp encoded as S-expressions is homoiconic, and that M-expressions form a one-to-one, invertible correspondence with their equivalent S-expressions, it should then be obvious that M-expressions are thus also homoiconic. Therefore, no expressive power is lost by the utilization of M-expression syntax compared to S-expression syntax.

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why 'T' or 't'?

in the table example...

[lessp[x;0] → minus[x]; T → x] (cond ((< x 0) (- x)) (t x))

... why e.g. "(t x)" instead of just 'x' or "(x)"?

(I'm a noob re Lisp.) Abe149 (talk) 04:02, 26 July 2023 (UTC)[reply]