Re: constructing a matrix from a vector

[Jordi Gutiérrez Hermoso]

2011/10/18 ishi soichi <address@hidden>:
> Ah, yes. You're taking that course as well? :)

Yes.

> 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 :)

See my answer here:

    http://www.ml-class.org/course/qna/view?id=993

HTH,
- Jordi G. H.