What is the matrix code for column vectors

2017 7 14
2 个回答
更新时间：2017 7 14
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0 个投票

You have two variables u, v and you calculate the shape using the size command:
>> size(u) ans = 1 3 >> size(v) ans = 3 1 I want a matrix with 3 columns, the vectors u and v in the first two, and their sum in the third.

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回答（2 个）

dbmn
dbmn 2017-7-14

0 个投票

This should do the trick using the ' for transpose
new_matrix = [u', v', (u+v)']

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Meenakshi S
Meenakshi S 2017-7-14
It does not accept this.Can u pls tel any other command
Jan
Jan 2017-7-14
@Meenakshi S: Please do not let us guess. Does "not accept" means, that you get an error message? If so, please post it here. It is much easier to fix an error than to guess, what the error is.
Many readers of the forum are not native English speakers. Then kewl abbrevs makes it harder to read your messages.

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C.J. Harris
C.J. Harris 2017-7-14

0 个投票

There are a few ways to do this, for example:
x = [u' v (u' + v)]
The apostrophe can be used to transpose a matrix. You could also use the 'reshape' command.

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Meenakshi S
Meenakshi S 2017-7-14
It does not accept this.Can u pls tel any other command
Jan
Jan 2017-7-14
编辑：Jan 2017-7-14
This is a correct answer. Because I assume, that this is a homework question, I recommend not to post the solution, because then the OP cannot submit this as his solution anymore. It is better to ask, what she has tried so far and which problems occur.

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Jan
Jan
2017-7-14

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