Return a function handle that when applied to an input, it produces two outputs: the first is the same as the input, and the second is the element-wise square of the input.
[a b]=f([1 2 3])
1 2 3
1 4 9
What is Function-name? is it f2f or f?
how does this work?
Find the peak 3n+1 sequence value
Getting the absolute index from a matrix
Who invented zero?
Create an 'arrow-head" matrix
Replace multiples of 5 with NaN
Count up then down
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