Make the following variable:
A 9x9 matrix of zeros, but with the following values on the main diagonal:
(Hint: use diag)
Swap the first and last columns
Sums with Excluded Digits
Project Euler: Problem 5, Smallest multiple
Make one big string out of two smaller strings
03 - Matrix Variables 6
03 - Matrix Variables 1
02 - Vector Variables 4
07 - Common functions and indexing 1
02 - Vector Variables 1
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