Why does adding a space give vertcat error?

2021 10 10
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更新时间：2021 10 10
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Ran in:
Although this works as expected
[1;1+1]
ans = 2×1
1 2
Inserting a space gives vertcat error for some reason
[1;1 +1]
Error using vertcat
Dimensions of arrays being concatenated are not consistent.
Why does this occur?

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G A
G A 2021-10-10

1 个投票

with a space, [1;1 +1] is interpreted as [1;1, +1]. [1;(1 +1)] will be OK.

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Ashish Uniyal
Ashish Uniyal 2021-10-10
Ah got it, thanks a lot! Although it's a bit unexpected with an operator sitting there.
G A
G A 2021-10-10
编辑：G A 2021-10-10
I found that
[1 + 1; 1 + 1]
ans =
2
2
[1 +1; 1 +1]
ans =
1 1
1 1
[1+1; 1+1]
ans =
2
2
[1+ 1; 1+ 1]
ans =
2
2
the same behaviour if the second number is imaginary as 1i

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