Page 24 - Basics of MATLAB and Beyond

>>a+b
ans =
11 33
44 66
77 99

3.8 Transpose
To convert rows into columns use the transpose symbol ’:

>> a’
ans =

1 4 7
3 6 9

>> b = [[1 2 3]’ [4 5 6]’]
b =
1 4
2 5
3 6
Be careful when taking the transpose of complex matrices. The transpose
operator takes the complex conjugate transpose. If z is the matrix:

1 0 − i
0+2i 1+ i
then z’ is:

1 0 − 2i
.
0+ i 1 − i
To take the transpose without conjugating the complex elements, use
the .’ operator. In this case z.’ is:

1 0+2i .
0 − i 1+ i

4 Basic Graphics

The bread-and-butter of matlab graphics is the plot command. Earlier
we produced a plot of the sine function:

x = 0:.1:2*pi;
y = sin(x);
plot(x,y)

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