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a)

Code Block

language	none

function boolean = isPalindrome(word)
word = lower(word);
for i = 1:floor(length(word)/2)
    if word(i) ~= word(length(word)-i+1)
        boolean = false;
        return
    end
end
boolean = true;
end

b)

Code Block

language	none

function boolean = isPalindromeSentence(sentence)
word = '';
counter = 1;
for i = 1:length(sentence)
    if strcmp(sentence(i), ' ') || strcmp(sentence(i), '.') || strcmp~isletter(sentence(i), ',')
        continue 
    end
    word(counter) = sentence(i);
    counter = counter + 1;
end
boolean = isPalindrome(word);
end

c)

Code Block

language	none

function resindex = sequenceFinder containsSubstring(sequencefirst,start,stop second)
len = 0;
index = 0-1;
for i = 1:length(sequence)-length(stop)
    if (length(start) <= length(sequence(i:end))) && strcmp(start,sequence(i:i+length(start)-1)) : length(first) - length(second) + 1
        indexS = i;
    elseif (length(stop) <= length(sequence(i:end))) && strcmp(stop,sequence(i:i+length(start)-1)if strcmp(first(i : i + length(second) - 1), second)
        indexEindex = i;
        if len < indexE -indexS
            len = indexE -indexS;return
            index = indexS;
        end
    end  
end
res = sequence(index:index+len+length(stop)-1);
end

function res = sequenceFinder (sequence,start,stop )

len = 0;

index = 0;

for i = 1:length(sequence)-length(stop)

if (length(start) <= length(sequence(i:end))) && strcmp(start,sequence(i:i+length(start)-1))

indexS = i;

elseif (length(stop) <= length(sequence(i:end))) && strcmp(stop,sequence(i:i+length(start)-1))

indexE = i;

if len < indexE -indexS

len = indexE -indexS;

index = indexS;

end

res = sequence(index:index+len+length(stop)-1);

end

Eventuelt kan den lages litt enklere ved hjelp av matlabs strfind() funksjon.

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