Covering some basic topics I haven't seen elsewhere on Cody.
Given an input vector, output true or false whether it is a column vector.
The if statement did not work for x =1.
Their is a function for this already.
I guess this exercise is about learning that this function exists.
Swap the first and last columns
Back to basics 18 - justification
Compute a dot product of two vectors x and y
Reverse a matrix
Back to basics 12 - Input Arguments
Back to basics 26 - Keywords
Back to basics 9 - Indexed References
Back to basics 21 - Matrix replicating
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