Graphics Programs Reference
In-Depth Information
>>b=[123]
%Rowvector
b=
1
2
3
>>b=[1;2;3]
%Columnvector
b=
1
2
3
>>b=[123]'
%Transposeofrowvector
b=
1
2
3
The single quote (
'
) is the
transpose operator
in MATLAB; thus
b'
is the transpose
of
b
.
The elements of amatrix,such as
⎡
⎣
⎤
⎦
A
11
A
12
A
13
A
21
A
22
A
23
A
31
A
32
A
33
A
=
can be accessedwith the statement
A(i,j)
, where
i
and
j
are the row and column
numbers, respectively. A section of an array can beextractedbythe use of colon
notation. Here is an illustration:
>>A=[816;357;492]
A=
8
1
6
3
5
7
4
9
2
>> A(2,3)
% Element in row 2, column 3
ans =
7
>> A(:,2)
% Second column
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