#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
ENGG1811. 

The numpy sum function 
"""

import numpy as np 

# Problem parameters
array1 = np.array([ [-3.2,  0,  0.5, 5.8], 
                    [   6, -4,  6.2, 7.1],
                    [ 3.8,  5,  2.7, 3.7]])


print(np.sum(array1)) # default parameter value 

print(np.sum(array1, axis = 0)) # along axis 0 

print(np.sum(array1, axis = 1)) # along axis 1