Re: constructing a matrix from a vector

[Francesco Potortì]

>I wanted to execute element-wise subtraction.
>
>4 5 6         1 2 3
>7 8 9     -
>1 2 3
>4 5 6
>
>like that. ".-" doesn't do the job.  If there is a better way, it's great.
>But my solution was correct at least using repmat :)

bsxfun should work, by reading the docs.  But in Octave 3.2.4 on Debian
I see this:

a=[4 5 6; 7 8 9; 1 2 3; 4 5 6]
a =

   4   5   6
   7   8   9
   1   2   3
   4   5   6

octave> b=1:3
b =

   1   2   3

octave> bsxfun(minus,a,b)
error: Invalid call to minus.  Correct usage is:

 -- Built-in Function:  minus (X, Y)

octave> bsxfun("minus",a,b)
ans =

   3   3   3
   6   6   6
   0   0   0
   3   3   3

It's me or it's a bug?

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