[Openmcl-devel] inverse function

Taoufik Dachraoui taoufik at mazeboard.com
Sat Feb 13 18:55:28 UTC 2010


Hi Ron,

I am aware that not all functions have inverses, that is why I said "if
possible"

Kind regards
Taoufik


On Sat, Feb 13, 2010 at 6:31 PM, Ron Garret <ron at flownet.com> wrote:

>
> On Feb 13, 2010, at 4:20 AM, Taoufik Dachraoui wrote:
>
>
> Does someone know if there is any work done to generate an inverse of any
> given lisp function (if possible).
>
>
> *Any* given function?  That would be quite the trick.  If you can figure
> out how to invert, say, AES-ENCRYPT do let us know. Or DELETE-FILE.
>  Inverting multiplication would be pretty cool too.  Here's a test case for
> you:
>
> (funcall (invert #'*)
> 412023436986659543855531365332575948179811699844327982845455626433876445565248426198098870423161841879261420247188869492560931776375033421130982397485150944909106910269861031862704114880866970564902903653658867433731720813104105190864254793282601391257624033946373269391)
>
> rg
>
>
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