[learn Python from simple to deep] function 3 anonymous function (lambda)

# Conventional function writing 
def f1(x):
return x*x
f1(5)

25

# Anonymous functions 
(lambda x:x*x)(5)

25

# example 2： Two parameters 
# routine 
def f2(x,y):
return x*y

f2(2,3)

6

# Anonymous functions 
(lambda x,y:x*y)(2,3)

6