def dotproduct(X, Y):
    """Return the sum of the element-wise product of vectors x and y.
    >>> dotproduct([1, 2, 3], [1000, 100, 10])
    1230
    """
    return sum([x * y for x, y in zip(X, Y)])
def dotproduct(X, Y):
    """Return the sum of the element-wise product of vectors x and y.
    >>> dotproduct([1, 2, 3], [1000, 100, 10])
    1230
    """
    return sum([x * y for x, y in zip(X, Y)])
def dotproduct ( X , Y ) : return sum ( [ x * y for x , y in zip ( X , Y ) ] )
Return the sum of the element-wise product of vectors x and y.
    >>> dotproduct([1, 2, 3], [1000, 100, 10])
    1230
Return the sum of the element - wise product of vectors x and y . >>> dotproduct ( [ 1 2 3 ] [ 1000 100 10 ] ) 1230