regression in lambert_w (in Maxima 5.28 for Windows)
Subject: regression in lambert_w (in Maxima 5.28 for Windows)
From: David Billinghurst
Date: Sun, 26 Aug 2012 00:32:02 +1000
On 25/08/2012 11:35 PM, Jean-Claude Arbaut wrote:
> Hello,
>
> I get the following error in Maxima 5.28 on Windows (it works with
> Maxima 5.27, also on Windows) :
>
> (%i15) lambert_w(1), numer;
> Maxima encountered a Lisp error:
> Error in MACSYMA-TOP-LEVEL [or a callee]: No matching method for the
> generic-function #<compiled-closure BIGFLOAT-IMPL:EPSILON>,
> when called with arguments (1).
> Automatically continuing.
> To enable the Lisp debugger set *debugger-hook* to nil.
>
>
> However, the following work (in both 5.27 and 5.28) :
> lambert_w(1.0);
> lambert_w(1), bfloat;
Thanks for the report. I rewrote parts of the lambert_w code since 5.27
and probably introduced this bug.
"lambert_w(2), float;" has the same problem. I will investigate.