Create a row vector of length n, filled with 4's, for example, if n = 3
output = [4 4 4]
make sure to round UP when n is a decimal, and take the absolute value when n is negative
So many choices
Determine Whether an array is empty
Colon operator of two vectors
Matlab Basics - Logical Tests I
Matlab Basics - Absolute Value
Matlab Basics - Rounding III
Matlab Basics - Switching Assignments
Matlab Basics II - Find the roots of a function
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