I see that both files "topoly_solver.mac" (out dated and broken) and
"to_poly_solver.mac" (the current file) reside in /share/contrib.
Either
(1) "topoly_solver.mac" should be deleted from CVS (I'm not sure I know
how),
(2) the share makefile should ignore "topoly_solver.mac",
(3) "topoly_solver.mac" should be converted into a stub for loading
"to_poly_solver.mac".
Advice?
I'm not sure, but I think this file naming mess I created is the reason
why Ray got a bad answer for
to_poly_solve(2*cos(x)^2*x0-2*sin(x)*cos(x)*y0=x0,x).
--Barton
maxima-bounces at math.utexas.edu wrote on 09/02/2010 08:50:44 AM:
> [image removed]
>
> Re: [Maxima] Trigonometric equations
>
> Raymond Toy
>
> to:
>
> maxima
>
> 09/02/2010 08:50 AM
>
> Sent by:
>
> maxima-bounces at math.utexas.edu
>
> On 9/2/10 6:34 AM, Poul Riis wrote:
> Maxima returns something not very useful when typing
> solve(2*cos(x)^2*x0-2*sin(x)*cos(x)*y0=x0,x);
>
> - an equation which can rather easily be solved by hand.
> Is there a kind of 'trigsolve' which can automatically solve
> trigonometric equations other than rather trivial ones?
>
> I was going to recommend using to_poly_solve:
>
> to_poly_solve(2*cos(x)^2*x0-2*sin(x)*cos(x)*y0=x0,x);
> ->
> [[x=%r2], [x=%r1]]
>
> which is clearly wrong since the equation is not an identity.
>
> Bummer.
>
> Ray_______________________________________________
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