A lambda function is a small anonymous function. A lambda function can take any number of arguments, but can only have one expression.

Syntax is – lambda arguments : expression

1. EXAMPLES OF LAMBDA

1.1 ADDITION IN LAMBDA IN PYTHON

x lambda function that adds 20 to the number passed in as an argument and print the result

ans = lambda x : x + 20
print(ans(5))

OUTPUT:

1.2 MULTIPLICATION IN LAMBDA IN PYTHON

ans = lambda x, y : x * y
print(ans(5, 6))

OUTPUT:

1.3 ADDING THREE ARGUMENTS IN LAMBDA IN PYTHON

ans = lambda x, y, z : x + y + z
print(ans(5, 6, 2))

OUTPUT:

2. WHY USE LAMBDA FUNCTIONS?

The power of lambda is better shown when you use them as an anonymous function inside another function.

2.1 FUNCTION IN LAMBDA IN PYTHON

def myfunction(num):
    return lambda x : x * num
ans = myfunction(2)
print(ans(11))

OUTPUT:

2.2 LAMBDA FUNCTION IN PYTHON

def myfunc(num):
    return lambda x : x * num
ans = myfunc(2)
ans2 = myfunc(3)
print(ans(11))
print(ans2(11))

OUTPUT: