[Maxima] How to declare the inverse to a function

Stavros Macrakis macrakis at alum.mit.edu
Tue Jan 10 12:52:27 CST 2006


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>
> > 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)=3D2,x) =3D> x=3Dtan(2).

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<div><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(=
204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">&gt; could a=
nyone give me a tip how to declare the inverse to the<br>&gt; 'conjugate' f=
unction, to avoid this:
<br></blockquote></div><br>Maxima offers no way to extend the functionality=
 of &quot;solve&quot; by declaring inverses of functions.&nbsp; Although th=
ere is an internal mechanism for declaring inverses, it is restricted in sc=
ope and in fact does not work correctly in general: solve(atan(x)=3D2,x) =
=3D&gt; x=3Dtan(2).
<br>

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