[plt-scheme] MrMathematica

======= 2004-06-10 20:54:03 Shriram Krishnamurthi =======

>Hi --
>
>Nice work!
>
>Have you considered writing some macros instead?  That way you can
>better check the syntactic structure of inputs you send to
>Mathematica.  If you do this, I strongly encourage you to adopt Olin
>Shivers's "quasiquoted macro" convention, where the macro is
>implicitly quasiquoted rather than quoted.  That way if you never
>unquote it looks the same as if it were quoted, while you still leave
>the power to unquote within the macro body.  (Scsh has several
>examples of this form.)
>
>It is neat that you can use the output of Mathematica to define new
>Scheme functions:
>
>> (define f (matheval '(Integrate (expt x 2) x)))
>> f
>(* 1/3 (expt x 3))
>> (define s (eval `(lambda (x) ,f)))
>> (- (s 1) (s 0))
>1/3
>
>It would be nice if, eventually, the result were automatically a
>Scheme function, or at least an object that can be treated both
>sytactically (if you just want to view it textually) and as a
>function, so you don't need to write
>
>(define s (eval `(lambda (x) ,f)))
>
>Is Mathematica designed to be use this way?  Does it behave well when
>embedded?
>
>Shriram
>

I get your meaning. But I can't do that. I have to call Mathematica, and 
the return expression from Mathematica is already symbol based. 

Zhu Chongkai
http://www.websamba.com/mrmathematica