Guess the formula to transform strings as follows:
'Hello World!' --> 'Ifmmp Xpsme!'
'Can I help you?' --> 'Dbo J ifmq zpv?'
Simple and interesting.
Number of toolboxes?
Back to basics 12 - Input Arguments
Back to basics 19 - character types
Sum of first n terms of a harmonic progression
Number of 1s in a binary string
Apply a function array to an array of numbers
Count up then down
Raise Matrix to Power
Create an 'arrow-head" matrix
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