!pip install jovian --upgrade --quiet

weights = [0.1,0.3,0.5]
paris = [8,9,7]
def crop_yeild(region,weights):
    result = 0
    for x,y in zip(region,weights):
        result += x*y
    return result

crop_yeild(paris,weights)

import numpy as np

weights = np.array([0.1,0.3,0.5])
paris = np.array([8,9,7])
def crop_yeild(region,weights):
    return np.dot(region,weights)