#to add and multiply numbers using lambda in python
a=int(input("a number: "))
b=int(input("another number: "))
print("the sum is {}".format(lambda a,b:a+b))
print("the multiple is {}".format(lambda a,b:a*b))
i tried to add and multiply two numbers using lambda but i don't know why it shows error like this.I am a beginner to programming the error is :
the sum is <function <lambda> at 0x000001B6BF941B88>
the multiple is <function <lambda> at 0x000001B6BF893798>
You create a function, but don't actually call it. You can change this in two ways: call the lambda or don't use a lambda function. In this case the second would be better, but if you just want to learn about lambda functions you might use the first.
print("the sum is {}".format((lambda a,b:a+b)(a, b)))
print("the multiple is {}".format((lambda a,b:a*b)(a, b)))
The change I made was to replace the lambda with (lambda a,b:a+b)(a, b)
or just remove the lambda
print("the sum is {}".format(a+b))
print("the multiple is {}".format(a*b))
This would be the better option in this case.
lambda is the way of writing anonymous function but they are still functions you need to call them.
a=int(input("a number: "))
b=int(input("another number: "))
print("the sum is {}".format((lambda a,b:a+b)(a,b)))
print("the multiple is {}".format((lambda a,b:a*b)(a,b)))
Output:
a number: 1
another number: 2
the sum is 3
the multiple is 2
There is no error in your output. Since lambda is a function, when you print it you see <function <lambda> at 0x000001B6BF941B88>.
If you want to invoke it, try:
a=int(input("a number: "))
b=int(input("another number: "))
sum_func = lambda a,b:a+b
product_func = lambda a,b:a*b
print("the sum is {}".format(sum_func(a,b)))
print("the multiple is {}".format(product_func(a,b)))
Try storing it in a variable.
#to add and multiply numbers using lambda in python
a=int(input("a number: "))
b=int(input("another number: "))
add = lambda a,b:a+b
mult = lambda a,b:a*b
print("the sum is {}".format(add(a,b)))
print("the multiple is {}".format(mult(a,b)))
lambdais a function. You need to actually call it to get a value... why are you usinglambdahere? You could do(lambda a,b: a+b)(a,b)but that's just a clumsy way of doinga + b...a+banda*b.