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Python Lambda Functions Quiz

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Questions and Answers

What is the syntax for a lambda function in Python?

function lambda(arguments) { return expression; }

def lambda(arguments): return expression

lambda arguments : expression (correct)

lambda function(arguments) { expression; }

How many arguments can a lambda function take?

Only one argument

Exactly two arguments

Up to three arguments

Any number of arguments (correct)

What does the following lambda function do: $x = ext{lambda} hinspace a, b : a * b$?

Subtracts argument b from argument a

Adds argument a and b together

Multiplies argument a with argument b (correct)

Divides argument a by argument b

In which scenario would you use lambda functions according to the text?

<p>When an anonymous function is required for a short period of time</p> Signup and view all the answers

What does the following code do: $mydoubler = ext{myfunc}(2); hinspace ext{print}(mydoubler(11));$?

<p>Multiplies the number 11 by 2</p> Signup and view all the answers

Study Notes

Lambda Functions in Python

A lambda function in Python is a small anonymous function that can take any number of arguments, but can only have one expression.
A lambda function can take any number of arguments, but it can only have one expression.
The syntax for a lambda function is: lambda arguments: expression
The lambda function $x = ext{lambda} hinspace a, b : a * b$ takes two arguments a and b and returns their product.
Lambda functions are useful when you need a small, short-term function that is not worth defining a separate named function for.
The code mydoubler = ext{myfunc}(2); hinspace ext{print}(mydoubler(11)); defines a lambda function myfunc that takes one argument, multiplies it by 2, and then prints the result of multiplying 11 by 2.

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Description

Test your knowledge of Python lambda functions with this quiz. Learn about the syntax and usage of lambda functions to create small anonymous functions with a single expression.