Question

In Dr-Racket, which of the following is not necessarily true of a function that takes no...

In Dr-Racket, which of the following is not necessarily true of a function that takes no arguments?

A) It can result in side effects

B) It might return (void)

C) It might return a value like any other function

D) It has the same result every time it is called, since it has no input arguments to deal with

E) It is called like any other function, i.e. inside parentheses

F) It can result in both side effects and return value

Engineering   Computer-Science   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer)
In Dr-Racket, the following is valid and necessarily true of a function which takes no arguments:
D) It has the same result every time it is called since it has no input arguments to deal with

The functions which have no arguments required to call them are called like any other function in Dr-Racket without the arguments of course. Such functions may return void, may return some value which is also true for other functions as per the function definition and purpose. Such a function can result in side effects and also return some value. But, the result may not be the same every time the function is called since the function can be dependent on other functions, variables and thus this may not be true every time.

**Please Hit Like if you appreciate my answer. For further doubts on the answer please drop a comment, I'll be happy to help. Thanks for posting.**

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
***************PLEASE GIVE ANSWERS IN RACKET PROGRAMMING LANGUAGE ONLY****************** Write a recursive Racket function "update-if" that takes...
***************PLEASE GIVE ANSWERS IN RACKET PROGRAMMING LANGUAGE ONLY****************** Write a recursive Racket function "update-if" that takes two functions, f and g, and a list xs as parameters and evaluates to a list. f will be a function that takes one parameter and evaluates true or false. g will be a function that takes one parameter and evaluates to some output. The result of update-if should be a list of items such that if x is in xs and (f x)...
Write a Racket function "combine" that takes two functions, f and g, as parameters and evaluates...
Write a Racket function "combine" that takes two functions, f and g, as parameters and evaluates to a new function. Both f and g will be functions that take one parameter and evaluate to some result. The returned function should be the composition of the two functions with f applied first and g applied to f's result. For example (combine add1 sub1) should evaluate to a function equivalent to (define (h x) (sub1 (add1 x))). You will need to use...
1. Write a function called compute_discount which takes a float as the cost and a Boolean...
1. Write a function called compute_discount which takes a float as the cost and a Boolean value to indicate membership. If the customer is a member, give him/her a 10% discount. If the customer is not a member, she/he will not receive a discount. Give all customers a 5% discount, since it is Cyber Tuesday. Return the discounted cost. Do not prompt the user for input or print within the compute_discount function. Call the function from within main() and pass...
8) Write Python code for a function called occurances that takes two arguments str1 and str2,...
8) Write Python code for a function called occurances that takes two arguments str1 and str2, assumed to be strings, and returns a dictionary where the keys are the characters in str2. For each character key, the value associated with that key must be either the string ‘‘none’’, ‘‘once’’, or ‘‘more than once’’, depending on how many times that character occurs in str1. In other words, the function roughly keeps track of how many times each character in str1 occurs...
Fill in the code for the function below called containsAvgValue. It takes as input a float...
Fill in the code for the function below called containsAvgValue. It takes as input a float array of any length and returns 1 if the array happens to contain a value that equals the average of all the values in the array or 0 otherwise. For example, when give the array [2.0, 2.0] it should return 1 since the average value is 2.0 and the array contains that value. To help you, I’ve included a function that computes the average...
In main.cpp, write a templated function more which takes in two variables of the same type...
In main.cpp, write a templated function more which takes in two variables of the same type and returns whichever variable is greater than (>) the other. You can and may need to add something to the food class in order for more to be able to be called properly. //food.h #ifndef _FOOD_H #define _FOOD_H #include <iostream> #include <string> using namespace std; class Food { private: string name; int quantity; public: Food(); void setName(string newName); void setQuantity(int newQuantity); string getName(); int...
PROGRAM PYHTON Write a function called "calculateInput" that when called, it asks the user to enter...
PROGRAM PYHTON Write a function called "calculateInput" that when called, it asks the user to enter an number. Then, it asks for a second number. These will use the "input" command. Store these as two separate variables. This function takes NO arguments and is also a VOID function, there is no return statement. The function should print the result of these two numbers multiplied together. The program should be able to multiply floats. For example: Test Input Result calculateInput() 5...
Please answer the following C question: There is a documented prototype for a function called get_a_line...
Please answer the following C question: There is a documented prototype for a function called get_a_line in the code below. Write a definition for get_a_line—the only function called from that definition should be fgetc. #include <stdio.h> #include <string.h> #define BUFFER_ARRAY_SIZE 10 int get_a_line(char *s, int size, FILE *stream); // Does what fgets does, using repeated calls to fgetc, but // provides a more useful return value than fgets does. // // REQUIRES // size > 1. // s points to...
Write the function has duplicate() which takes as input a vector v and outputs true if...
Write the function has duplicate() which takes as input a vector v and outputs true if there is a re- peated element in v and false if there is no repeated elements. Below is the algorithm which you should implement. default output is 0 for elt1 in v: for elt2 later in v than elt1: if elt1==elt2, make output 1, break, end end end Checking if elt1==elt2 counts as one step. Setting the output value also counts as one step....
1.Write a function which takes a string that contains two words separated by any amount of...
1.Write a function which takes a string that contains two words separated by any amount of whitespace, and returns a string in which the words are swapped around and the whitespace is preserved. Hint: use regular expressions where \s detects the whitespaces in a string. Example: given "Hello     World", return "World         Hello" 2.Pandas exercises: Write a python program using Pandas to create and display a one-dimensional array-like object containing an array of data. Write a python program using Pandas to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT