Question

Answer Sheet for L16. Logical Vectors and Image Processing in MATLAB 1. Exploring Logical Vectors Define a = [-2 -1 0 1 2] and b = [0 -3 -2 1 4]. Predict the result of each of the logical MATLAB expressions below. Then test your predictions by entering the expressions into MATLAB. Problem MATLAB expression Predicted Result MATLAB result (if different) 1 >> ~a 2 >> a & b 3 >> a | b 4 >> b > 0 5 >> a == b 6 >> a > b 7 >> a < 0 & a > b 8 >> a(a > 0) 9 >> a(a > b) 10 >> a (~(~a)) 11 >> (b.^2).(b > 0) 12 >> (a.^2).(-1(a < 0)) 13 >> a + b.(b >= -2 & b <= 2) 14 >> sum(a > 0) 15 >> sum(a.*(a > 0)) 16 >> any(a > b) 17 >> all(a > b) 18 >> find(a > b)

          Answer Sheet for L16. Logical Vectors and Image Processing in MATLAB
1. Exploring Logical Vectors
Define a = [-2 -1 0 1 2] and b = [0 -3 -2 1 4]. Predict the result of each of the logical MATLAB
expressions below. Then test your predictions by entering the expressions into MATLAB.
Problem MATLAB expression
Predicted Result
MATLAB result (if different)
1
>> ~a
2
>> a & b
3
>> a | b
4
>> b > 0
5
>> a == b
6
>> a > b
7
>> a < 0 & a > b
8
>> a(a > 0)
9
>> a(a > b)
10
>> a (~(~a))
11
>> (b.^2).*(b > 0)
12
>> (a.^2).*(-1*(a < 0))
13
>> a + b.*(b >= -2 & b <= 2)
14
>> sum(a > 0)
15
>> sum(a.*(a > 0))
16
>> any(a > b)
17
>> all(a > b)
18
>> find(a > b)

Answer Sheet for L16. Logical Vectors and Image Processing in MATLAB
1. Exploring Logical Vectors
Define a = [-2 -1 0 1 2] and b = [0 -3 -2 1 4]. Predict the result of each of the logical MATLAB
expressions below. Then test your predictions by entering the expressions into MATLAB.
Problem MATLAB expression
Predicted Result
MATLAB result (if different)
1
>> a
2
>> a b
3
>> a | b
4
>> b > 0
5
>> a == b
6
>> a > b
7
>> a < 0 a > b
8
>> a(a > 0)
9
>> a(a > b)
10
>> a ( ( a))
11
>> (b.^2).*(b > 0)
12
>> (a.^2).*(-1*(a < 0))
13
>> a + b.*(b >= -2 b <= 2)
14
>> sum(a > 0)
15
>> sum(a.*(a > 0))
16
>> any(a > b)
17
>> all(a > b)
18
>> find(a > b)

Added by Ashley D.

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