Covering some basic topics I haven't seen elsewhere on Cody.
Return the number of punctuation characters in the input variable.
Trouble in the test suite :)
I think the problem is with Cody itself today. It's doing weird things. If you submit this solution again it fails.
Change the sign of even index entries of the reversed vector
Who is the smartest MATLAB programmer?
Symmetry of vector
07 - Common functions and indexing 5
Back to basics 12 - Input Arguments
Back to basics 26 - Keywords
Back to basics 6 - Column Vector
Back to basics 2 - Function Path
Back to basics 16 - byte order
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