Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).
Test if a Number is a Palindrome without using any String Operations
Project Euler: Problem 7, Nth prime
Sophie Germain prime
middleAsColumn: Return all but first and last element as a column vector
Key Generation for Solitaire Cipher
Set a diagonal
Create a patchwork matrix
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