Given the matrix M, return M without the external frame.
Additional test cases have been added.
Which values occur exactly three times?
Summing Digits within Text
Make a random, non-repeating vector.
Return 'on' or 'off'
Who has power to do everything in this world?
Fermat's Last Theorem - Fermat's conjecture
Center of mass
Given a matrix, return the last eigen value
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