Cube Every Third Integer Using Nested Loop Structure

Attempting to cube every third integer in an array using a for and if loop structure. Note, this is my first time creating a nested loop structure and need simple straightforward explanation as to why the code does not work.

for i = [1:16]

if (i/3==0)

i^3

else

i

end

end

Answer 1

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for i = [1:16]
 if (mod(i,3)==0)
i^3
else 
i 
end 
end 

i = 1

i = 2

ans = 27

i = 4

i = 5

ans = 216

i = 7

i = 8

ans = 729

i = 10

i = 11

ans = 1728

i = 13

i = 14

ans = 3375

i = 16

[faith igo]

Thank you!

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