>> a
a =
a =
1 2
3 4
5 6
3 4
5 6
>> a(2,2)
ans = 4
>> a(2,:)
ans =
ans = 4
>> a(2,:)
ans =
3 4
>> b=a(:)
b =
b =
1
3
5
2
4
6
3
5
2
4
6
>> a(:,2)
ans =
ans =
2
4
6
4
6
>> a=[a,[6,7,8]]
error: horizontal dimensions mismatch (3x2 vs 1x3)
>> a=[a,[6,7]]
error: horizontal dimensions mismatch (3x2 vs 1x2)
>> a=[a,[6;7;8]]
a =
error: horizontal dimensions mismatch (3x2 vs 1x3)
>> a=[a,[6,7]]
error: horizontal dimensions mismatch (3x2 vs 1x2)
>> a=[a,[6;7;8]]
a =
1 2 6
3 4 7
5 6 8
3 4 7
5 6 8
>> a
a =
a =
1 2 6
3 4 7
5 6 8
3 4 7
5 6 8
>> b
b =
b =
1
3
5
2
4
6
3
5
2
4
6
>> b=[5;6;7]
b =
b =
5
6
7
6
7
>> a=[a b]
a =
a =
1 2 6 5
3 4 7 6
5 6 8 7
3 4 7 6
5 6 8 7
>> c=[1 2 3 4]
c =
c =
1 2 3 4
>> a=a[a;c]
parse error:
parse error:
syntax error
>>> a=a[a;c]
^
^
>> a=[a;c]
a =
a =
1 2 6 5
3 4 7 6
5 6 8 7
1 2 3 4
3 4 7 6
5 6 8 7
1 2 3 4
>> %,meas the operation of column
>> %;means the another
>> %;means the another