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]
Implement simple rotation cypher
Find nearest prime number less than input number
Given a 4x4 matrix, swap the two middle columns
Matlab Basics II - Operations and Matrix Dimensions
Matlab Basics - Set unwanted parts of a vector to zero
Matlab Basics - Logical Tests I
Finding an element in a vector
Matlab Basics II - Max & Index of Max
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