Higher-Order Functions Quiz

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Questions and Answers

What defines a higher-order function?

It can accept other functions as arguments or return functions as values. (correct)
It can only take numeric values as arguments.
It is limited to one execution per call.
It performs computations exclusively on string data.

Which statement correctly describes the function sum_naturals?

It is a higher-order function that returns another function.
It computes the sum of natural numbers up to n. (correct)
It computes the product of natural numbers up to n.
It sums only even numbers up to n.

What variable is used to track the current number being added in the sum_naturals function?

sum
n
k (correct)
total

What is the initial value of the variable total in the sum_naturals function?

0 (D) Signup and view all the answers

What is the purpose of using a while loop in the sum_naturals function?

To perform repeated addition until a condition is met. (D) Signup and view all the answers

What is a characteristic of higher-order functions?

They can accept other functions as arguments. (D) Signup and view all the answers

Which type of loop is used in the sum_naturals function to compute the sum?

While loop (C) Signup and view all the answers

What is the primary purpose of the function sum_naturals?

To compute the sum of natural numbers up to n. (A) Signup and view all the answers

When defining the sum_naturals function, what does the variable k represent?

The current natural number being added. (D) Signup and view all the answers

What should be the outcome of calling sum_naturals(5)?

15 (D) Signup and view all the answers

Flashcards

Higher-order Functions

Functions that accept other functions as arguments or return functions as values.

Functions as arguments

Higher-order functions can take other functions as input.

sum_naturals(n)

A function that computes the sum of natural numbers up to n.

Function Manipulation

Higher-order functions change other function's behavior.

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Example of a higher order function summing function

A function that takes a function as input and return a value. It takes a function like sum_naturals(n) as input and return the sum of natural numbers up to n.

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Summation Function

A function used to calculate the sum of a series of values.

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How are functions manipulated in a higher order function?

Higher-order functions can modify the behavior of other functions by changing the way they are executed or the values they return. This can involve things like applying a function to a set of values, applying a function repeatedly, or creating new functions based on existing ones.

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Study Notes

Higher-Order Functions

Functions can accept other functions as arguments or return functions as values.
Functions that manipulate functions are called higher-order functions.