Create the variable eMat2, which is equal to eMat with the top row replaced with ones.
Getting the indices from a vector
Create a vector whose elements depend on the previous element
Return area of square
Is this triangle right-angled?
Concatenate two strings
02 - Vector Variables 4
03 - Matrix Variables 2
02 - Vector Variables 3
04 - Scalar Equations 2
07 - Common functions and indexing 1
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