Create the variable eMat2, which is equal to eMat with the top row replaced with ones.
Set the array elements whose value is 13 to 0
Replicate elements in vectors
Make a 1 hot vector
Equal to their cube
02 - Vector Variables 5
02 - Vector Variables 3
06 - Matrix Equations 2
04 - Scalar Equations 3
07 - Common functions and indexing 4
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