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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: How can you enlarge a matrix by adding zeroes
Replies: 20   Last Post: Jun 19, 2012 12:22 PM

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Greg Heath

Posts: 211
Registered: 12/13/04
Re: How can you enlarge a matrix by adding zeroes
Posted: Jun 15, 2012 11:53 PM
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On Jun 15, 5:43 pm, "Ellen " <see.me.t...@hotmail.com> wrote:
> Okay. Clearly that doesn't make sense worded like that. Let's say I have a matrix
> [1;2;3;4;5]
> But I want to to have dimensions 1x10. How could I fill the matrix up so that it is now
> [1;2;3;4;5;0;0;0;0;0]
> if I didn't know that the matrix originally had a dimension of 1x5. I only knew it had a dimension somewhere between 1x1 and 1x10.
> If that is even possible. Or if that even makes sense. Thanks!

Incorrect notation: those matrices are column vectors, not row
vectors.

Therefore the dimensions are 10x1 and 5x1. Use dpb's syntax: [1:5]',
etc

Hope this helps.

Greg

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