In [3]:

    

def square(num):
    result = num**2
    return result


    

In [4]:

    

square(2)


    

    
Out[4]:





4

In [5]:

    

def square(num):
    return num**2


    

In [6]:

    

square(2)


    

    
Out[6]:





4

In [7]:

    

def square(num): return num**2


    

In [8]:

    

square(3)


    

    
Out[8]:





9

In [11]:

    

l_square = lambda num: num**2


    

In [12]:

    

l_square(2)


    

    
Out[12]:





4

In [13]:

    

# check if a number is even


    

In [15]:

    

even = lambda num: num%2 == 0


    

In [16]:

    

even(421)


    

    
Out[16]:





False

In [17]:

    

def even(num):
    return num%2 == 0


    

In [18]:

    

even(2981)


    

    
Out[18]:





False

In [19]:

    

# grabs the first character of a string


    

In [20]:

    

first = lambda s: s[0]


    

In [21]:

    

first('hello')


    

    
Out[21]:





'h'

In [22]:

    

rev = lambda s: s[::-1]


    

In [23]:

    

rev('hello')


    

    
Out[23]:





'olleh'

In [24]:

    

def adder(x,y):
    return x+y


    

In [25]:

    

adder(10,12)


    

    
Out[25]:





22

In [27]:

    

adder = lambda x,y: x+y


    

In [28]:

    

adder(30,30)


    

    
Out[28]:





60

In [29]:

    

len_check = lambda item: len(item)


    

In [30]:

    

len_check('how many chars does this string have?')


    

    
Out[30]:





37

In [31]:

    

len('how many chars does this string have?')


    

    
Out[31]:





37

In [ ]: