#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sat Jan 19 21:44:43 2019

@author: guanshim
"""

#%%
# test script with variables embeded
def f_multiply(x,y,z):
    """
    Multiply 3 numbers
    
    Return
    ------
    the muliplication
    """
    return x*y*z
x = 2
y = 1
z = 9

result = f_multiply(x,y,z)