Calculate the fft manually, without using matlab's builtin function.
No cheating allowed.
Sorry but with Frequency Domain, it's a duty to cheat (if it's possible) !
Finally, it's a hard work to forbid a single function.
nice trick! who needs str2func! this is going to cause some havoc though, it's all on you :)
Nice one! Did not knew that worked!
Sums with Excluded Digits
Back to basics 4 - Search Path
Is the Point in a Triangle?
Fangs of a vampire number
Find a Pythagorean triple
Get me! v2
Get me! v3
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