How to declare the inverse to a function

• Subject: How to declare the inverse to a function
• From: Denis Potapov
• Date: Wed, 11 Jan 2006 21:06:42 +1030

Hi,

you wrote:
> >
> > > could anyone give me a tip how to declare the inverse to the
> > > 'conjugate' function, to avoid this:
> >
> 
> Maxima offers no way to extend the functionality of "solve" by declaring
> inverses of functions.  Although there is an internal mechanism for
> declaring inverses, it is restricted in scope and in fact does not work
> correctly in general: solve(atan(x)=2,x) => x=tan(2).

If you mean lisp under "internal mechanism", well, then, that
"internal mechanism" is what I'm asking about.  If you gave me some
details (in lisp) that would be nice.  I'm just trying to avoid
digging in the (lisp) definition of $solve function myself :-).

D.

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