given the 1x5 vector x, y must be the square of the horizontal concatenation of the third and fifth elements. So, if x = [1 1 1 1 1], y must be [1 1].
The example you give in the problem statement is not very demonstrative.
HAHAHAHA Matt: this was great!!!
Remove NaN ?
Whether the input is vector?
Sort the vector with the given index
Back to Basics - Find no. of elements in a matrix?
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