Symbolic Matrix has extra blank row

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Carol Hurwitz
Carol Hurwitz 2018-9-4
评论： Walter Roberson 2018-9-5
When I do this:
>> syms b
>> C = [1 b; b 2]
C =
[1 b]
[ ]
[b 2]
The online example doesn't show this but I always get a blank row. What am I doing wrong? With all numbers, I get an ordinary matrix.

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回答（2 个）

madhan ravi
madhan ravi 2018-9-4
编辑：madhan ravi 2018-9-4
OR TRY:
C = str2sym('[1 b; b 2]')
Edited after Sir walter‘s comment.
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madhan ravi
madhan ravi 2018-9-5
编辑：madhan ravi 2018-9-5
If you find our (me and sir Walter‘s) answer useful please do accept my answer.

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Carol Hurwitz
Carol Hurwitz 2018-9-4
I still get the same output, using your code. Is there a package I need to install?
  2 个评论
Carol Hurwitz
Carol Hurwitz 2018-9-5
编辑：Walter Roberson 2018-9-5
I installed MATLAB at work today, with symbolic package, and it works perfectly. I reinstalled it at home and I get the same error as before.
C = [b 1 3 6; 2 4*b b 7; 0 3 5 1]
C =
[b 1 3 6]
[ ]
[2 4 b b 7]
[ ]
[0 3 5 1]
I am using different versions of Windows. At home I'm using 8.1, at work Win 10, both on 64 bit machines. It worked when I pulled it up on my iphone this afternoon.
Walter Roberson
Walter Roberson 2018-9-5
Is it possible that you have Maple installed on the system that has the problem?

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