[Maxima] Behavior of quad_qags

Robert Dodier robert.dodier at gmail.com
Thu Aug 21 23:59:42 CDT 2008


On 8/21/08, Mike Hansen <mhansen at gmail.com> wrote:

>  Before it would just give the error and not the output (%o1).  Was
>  this change intentional?

Yes. Returning a partially evaluated expression is consistent with the
behavior of other Maxima functions, including integrate.
This has at least one happy consequence; it is common enough for
the integration to fail for some reason but succeed when reevaluated
in a slightly different context, e.g. a call to quad_qags nested inside
find_root or another quad_qags call.

Robert Dodier


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