Consider x a vector of length >= 7 (there are at least 7 elements in the vector, write a script that extracts the 2nd element, as well as elements 5-7 and places them in a vector y in reverse order, for example:
x = [1 2 3 4 5 6 7] --> y = [5 6 7 2]
Count up then down
Is it an Armstrong number?
Matlab Basics II - Determine if an array has a 3rd dimension
Matlab Basics II - Extract last 3 elements of a vector
Matlab Basics II - Operations and Matrix Dimensions
Matlab Basics - Absolute Value
Matlab Basics II - Unit Conversion
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