are test #3 and #4 correct?
Sorry Rifat, I've messed up test cases. Rescored now.
Arrays are not a natural number..for the tests I mean
@Lorenzo, the input to solution function is always a single number. I've used arrayfun to make multiple tests in a single test case.
I think Test 3 and 4 are (still) faulty. The functions "any" and "all" must be swapped.
letter yes yes & letter no no
Back to basics 26 - Keywords
Find the logic
Celsius to Kelvin
expand intervals vol.3
Arithmetic/geometric sequence, 50/50
Don't Try, give up and return NaN.
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