The test suite has been expanded.
y = findpeaks(x);
why this one doesn't work?
findpeaks() function is a part of Signal Processing Toolbox, which Cody doesn't support.
Return the 3n+1 sequence for n
Reference Index Number
Create matrix of replicated elements
multiply by three
Moving average (variable kernel length)
Insert zeros into vector
Sort complex numbers into complex conjugate pairs
Duplicate a character
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