Duplicate all elements in the array
The solution to this problem doesn't make any sense!!!
If you are using the word "duplicate" to mean multiply by 2, then the correct answer is [2,4,6], not [1,4,6]
Omit columns averages from a matrix
Return the first and last character of a string
Side of an equilateral triangle
Is this triangle right-angled?
MATLAB Basic: rounding II
Find the max element of the array
Calculate the square root of a number
Converts numbers into characters
to the 2 all elements
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