Question about manual content: example(append); example("lambda");

Am Fri, 8 Nov 2013 06:08:30 -0200
schrieb Jorge Barros de Abreu <ficmatin10 at gmail.com>:

> line manual(Help) we have:
> 
> example(append);
> example("lambda");
> 
> My question is why 'example("lambda")' work and 'example(lambda)' not
> work?
> 
> Why both 'example("append")' and 'example(append)' work?
> 
> Do you know what is the difference betweem append and lambda for the
> "example" command?
> 
> Do you know why the "example" command treat append not equal to
> lambda?
> 
> Sorry for many questions. It is an effort to make the doubt clear.
> 
> Thanks for your time.


The maxima manual says:

(%i1) ? example

 -- Function: example (<topic>)
 -- Function: example ()
     `example (<topic>)' displays some examples of <topic>, which is a
     symbol or a string.  To get examples for operators like `if', `do',
     or `lambda' the argument must be a string, e.g. `example ("do")'.
       ... (more text follows) ...

However:

(%i2) example(lambda);
example: ambda not found. 'example();' returns the list of known
examples.

I think "ambda not found" is a bug.

- edgar