NumPy: function for simultaneous max() and min()

Question

numpy.amax() will find the max value in an array, and numpy.amin() does the same for the min value. If I want to find both max and min, I have to call both functions, which

Answer 1

The shortest way I've come up with is this:

mn, mx = np.sort(ar)[[0, -1]]

But since it sorts the array, it's not the most efficient.

Another short way would be:

mn, mx = np.percentile(ar, [0, 100])

This should be more efficient, but the result is calculated, and a float is returned.