Write a function that accepts as input a vector and returns the same vector, but retaining only the first occurrence of an element whenever there is consecutive repetition of this element.
in -> [1 2 2 2 3 4 4 3 5]
out-> [1 2 3 4 3 5]
First N Perfect Squares
Return the first and last character of a string
Matrix with different incremental runs
02 - Vector Variables 1
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
First non-zero element in each column
Find the elements of a matrix according to a defined property.
Duplicate each element of a vector.
Matrix which contains the values of an other matrix A at the given locations.
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