For a given square matrix x and scalar a, find x^a without using '^' or 'mpower'.
Remove all the consonants
Determine if a Given Number is a Triangle Number
Number of Horns on a unicorn!
Test if two numbers have the same digits
find radius of cone
Replace multiples of 5 with NaN
Handle to an array of functions
Two-output anonymous function?
Create an 'arrow-head" matrix
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