Question

In Matlab and not using any built in functions write a function that will take in a word and a specific letter. It will then return a list of all the positions in the word where that letter exists.  function indexes = find_letter_positions( word, letter )

Example of output.

>> find_letter_positions('hello', 'h')
ans =
[ 1 ];
>> find_letter_positions('hello', 'l')
ans =
[ 3 4 ];
>> find_letter_positions('hello', 'z')
ans = [ ]; % an empty array

Answer 1

function indices= find_letter_positions(word, letter)
word='hello'
n=length(word)
letter='h'
a=zeros(1,n)
for i=1:n
  
if(word(i)==letter)
a(i)=1
end
end
j=1
for i=1:n
if(a(i)==1)
indices(j)=i
j=j+1
end
end

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