Re: senseless warning in octave-3.6.2

[Przemek Klosowski]

On 07/06/2012 11:32 AM, Sergei Steshenko wrote:

> > There are three possible behaviors:
> >
> > - inner product:     vector OP vector -> scalar
> > - element-by-element     vector OP vector -> vector
> > - outer product        vector OP vector' -> matrix

> I have _explicitly_ requested element by element operation by using '.*' and 
> _not_ plain '*'.
>
> As a result I'm getting a _matrix_ and not a vector. _Exactly_ because I
> _explicitly_ requested element by element operation on two vectors and
> instead of a vector I got a matrix it is a _bug_.

OK, so we have three possible behaviors and four ways to specify the 
expression:

 [1 2]  * [3 4]    error: operator *: nonconformant arguments
 [1 2]  * [3 4]'   11      (scalar or inner product)
 [1 2] .* [3 4]    3   8   (element-by-element)
 [1 2] .* [3 4]'   warning: product: automatic broadcasting operation

you seem to argue that .* should return an element-by-element vector in 
both cases, but then we run out of simple ways of specifying 
broadcasting. Just accept that they moved the cheese and get on with it.