Define the variable a:
Use this to calculate x:
Find the numeric mean of the prime numbers in a matrix.
Is my wife right?
Find the sum of the elements in the "second" diagonal
How many trades represent all the profit?
01 - Scalar variables
03 - Matrix Variables 6
07 - Common functions and indexing 2
07 - Common functions and indexing 6
02 - Vector Variables 1
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