Swap the first and last columns
Least common multiple of many numbers
Swap the input arguments
Determine Whether an array is empty
Multiply by 3
Matrix with different incremental runs
Remove NaN ?
Duplicate each element of a vector.
Create a matrix X, where each column is a shifted copy of the vector v
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
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