Define the variable a:
Use this to calculate x:
Convert a vector into a number
Fill a zeros matrix
Return 'on' or 'off'
Given a 4x4 matrix, swap the two middle columns
Area of a triangle
07 - Common functions and indexing 2
07 - Common functions and indexing 3
02 - Vector Variables 2
07 - Common functions and indexing 5
03 - Matrix Variables 4
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