Covering some basic topics I haven't seen elsewhere on Cody.
Return the class of the input variable.
Find common elements in matrix rows
Set the array elements whose value is 13 to 0
Who has power to do everything in this world?
Bottles of beer
Back to basics 12 - Input Arguments
Back to basics 25 - Valid variable names
Back to basics 7 - Equal NaNs
Back to basics 17 - white space
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