Covering some basic topics I haven't seen elsewhere on Cody.
Return a string that is the path to the system's current temp directory
The assert is wrong. Dirs should not be tested as equal strings - slash can be omitted.
Sums with Excluded Digits
Column norms of a matrix
We love vectorized solutions. Problem 1 : remove the row average.
Create a Matrix of Zeros
Back to basics 14 - Keywords
Back to basics 19 - character types
Back to basics 17 - white space
Toolbox check part 3
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