Write a one-line statement which returns True if an array is a monotonically increasing sequence or False otherwise.
Hint: numpy.diff returns the difference between consecutive elements of a sequence. For example,
In [x]: np.diff([1,2,3,3,2])
Out[x]: array([ 1, 1, 0, -1])
The following statement will determine if a sequence a is increasing or not:
np.all(np.diff(a) > 0)
For example,
In [x]: np.all(np.diff([1,2,3,4,5]) > 0)
Out[x]: True
In [x]: np.all(np.diff([1,2,3,4,4]) > 0)
Out[x]: False