Question

Use MATLAB in all problems and be sure to use suitable MATLAB variable names.

a) Write a single line command to create an array sentenceB which stores the contents of array sentenceA in reverse. Hint: end:-1:1

b) Initialize a string array named sentenceA containing: ‘She ZZZZZ XXXYYYYYY by the XXXshore,’ Write a script using a for-loop (without using the MATLAB command strrep()) to replace according to the below: Replace XXX with ‘Sea’ Replace ZZZZZ ‘Sells’ Replace YYYYYY with ‘SHELLS’

c) Repeat part b) using strep()

Answer 1

Question A:

sentenceA = [1 2 3 4 5]

sentenceB = sentenceA(end:-1:1)

Question B:

sentenceA = 'She ZZZZZ XXXYYYYYY by the XXXshore'

s1 = 'Sea';

s2 = 'Sells';

s3 = 'SHELLS';

for i = 1:3

sentenceA(i+10) = s1(i);

sentenceA(i+27) = s1(i);

end

for i = 1:5

sentenceA(i+4) = s2(i);

end

for i = 1:6

sentenceA(i+13) = s3(i);

end

sentenceA

Question C:

sentenceA = 'She ZZZZZ XXXYYYYYY by the XXXshore'

sentenceA = strrep(sentenceA,'XXX',s1)

sentenceA = strrep(sentenceA,'ZZZZZ',s2)

sentenceA = strrep(sentenceA,'YYYYYY',s3)