# This is a comment
## This is also a comment
##### Still a comment

# Commenting out code can be useful too

##while True:
##    print "Don't do this"

'''
This is a multi-line comment aka. docstring
I can put several lines in here
The comment doesn't end until I close the docstring
'''

# Docstring for a function

'''
adds each element in new_elements to my_list and returns
the number of new elements added
Inputs: my_list - the original list to add elements too
new_elements - a list of new elements to add to my_list
Effects: adds elements from new_elements to my_list
Returns: the number of elements added to my_list
'''
def append_and_count(my_list, new_elements):
    count = 0
    for element in new_elements:
        my_list.append(element)
        count += 1
    return count

# Bad variable names
def f(arg1, arg2, arg3):
    n = (-arg2 + (arg2**2 - 4*arg1*arg3)**(.5))/(2*arg1)
    m = (-arg2 - (arg2**2 - 4*arg1*arg3)**(.5))/(2*arg1)
    return n, m

















# Better names
def quadratic_roots(a, b, c)
    root1 = (-b + (b**2 - 4*a*c)**(.5))/(2*a)
    root2 = (-b - (b**2 - 4*a*c)**(.5))/(2*a)
    return root1, root2