3. The scalar product of two lists of integers xs and ys of length n is give by the sum of the products of the corresponding integers: n-1 Σ(xs * ys;) i=0 Using a list comprehension, define a function that returns the scalar product of two lists.

3. The scalar product of two lists of integers xs and ys of length n is give by the sum of the products of the corresponding integers: n-1 Σ(xs * ys;) i=0 Using a list comprehension, define a function that returns the scalar product of two lists.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: The function first_three takes one string parameter, word, and returns a slice of length three from…

A: Use : operator to fetch the substring and if-else to find the length of parameter

Q: What is the equivalent Regular Expression for the following transition graph? + a a. b ba For the…

A: We need to find the regular expression for the given transition graph.

Q: Q5. They also asked you to modify the PRODUCT table by adding 10% to all the prices of 'G Tokyo…

A: The solution is given below with demo data in each of the product and vendor tables to understand…

Q: Q.29 Differentiate AES and DES algorithms.

Q: Give local prices and specifications of suitable hardware/software you recommend.

A: Hardware Specification: Specifications for computer hardware are detailed explanations of the…

Q: Let's work through an example of computing the QR factorization of a matrix. Consider the matrix A…

A: Program Approach: Step 1: Import the Numpy library as np. Step 2: Create a matrix m. Step 3:…

Q: If a client has a frame to transmit, it must then choose a random number (0 to .....) of timeslots…

A: Back off Timer:- The expression to find the back off time is: Back-off time = k * time_slot where…

Q: Hyper Text Transmission Protocol (HTTP) is a simple protocol that can be implemented with small…

A: HTTP is: Hypertext Transfer Protocol is an application-layer protocol in the Internet Protocol…

Q: A list of elements has a size of 100. Choose the operations where an ArrayList would be faster than…

A: ArrayList follows array based approach which will operate the elements of ArrayList by the help of…

Q: START 1 2 3 Move back 2 spaces 5 Go to Start 7 FINISH A player starts at the space marked start. A…

A: a) Draw a Finite State Machine Diagram representing the playing of this game for one player. For…

Q: Q.6 Explain Substitution cipher.

Q: How to Meeting the Needs of Many Users in software applications?

A: The solution is given below for the above-given question:

Q: Python help... Suppose variable s has been assigned in this way: s = '''It was the best of times,…

A: The Python code is given below with code and output screenshots Happy to help you ?

Q: Consider some input string s and some index i. The longest substring s[i], ... , s[j − 1] that is a…

A: algorithm for given data is:

Q: program it in java Define the FiguraGeometrica class that contains the attributes that…

A: Approach 1. Create a class FiguraGeometrica 2. Create main method 3. Ask user to enter the sides as…

Q: Create an object oriented template custom array that uses inheritance to create ordered and…

A: class Array { public: Array(); Array(int size); ~Array(); int getSize(); void…

Q: Which one of the following specifies the default amount of time between successive 802.11 data…

A: The answer to the following parts have been provided in the subsequent steps.

Q: New Roman, double-spaced) after researching a current (within the last 6 months) news story from a…

A: Social work:- Social work may be anticipated to take a leadership position in interdisciplinary…

Q: RAID-5 calculates a bit-by-bit XOR parity stripe for each corresponding block stripe across all…

A: Disk striping with parity is used in the redundant array of separate drives arrangement known as…

Q: Problem Statement Given four points of the form: x1,y1,x2,y2,x3, y3,x4, y4 - create a program that…

A: Given : Given four points of the form: x1,y1,x2,y2,x3,y3,x4,y4 - create a program that will…

Q: Please answers fast Implement an external sort, which uses intermediate files to sort files bigger…

A: Algorithms which refers to the finite sequence of rigorous instructions, typically used to solve a…

Q: number of years, and interest rate and displays the amortization schedule for the loan. Here is a…

A: We need to write a Java code for the given scenario.

Q: Question 6 - Data transfer Your application wants to send data as fast as possible with reliable…

A: Introduction Here we've given a short note on knowledge causing issues and to handle it. you'll…

Q: Doesn't look like anything is written in Java. The program needs to take input and put each word in…

A: In this question we have to write a java code for tree set where user input the text and add them to…

Q: b) Using hill cipher encrypt the message 'ESSENTIAL'. The key for encryption is 'ANOTHERBZ'.

Q: Using Gauss-Seidel for Six Iterations. 3x1 + 7x2 + 13x3 = 76 x1 + 5x2 + 3x3 = 28 12x1 + 3x2 -5x3…

A: The complete answer is below:

Q: onstruct the FIRST and FOLLOW for the A → BC | EFGH|H B → b C→C|E E → ee Е СЕ

A: Introduction: Below Construct the First and Follow for the grammar FIRST and FOLLOW are two…

Q: Q.6 Explain Substitution cipher.

A: Introduction A straightforward substitution cipher is the most ordinarily utilized cipher and…

Q: What are the Application Error Handling Strategy ?

A: a programme in which an error is noticed and handled, and this idea works well with both synchronous…

Q: ram to implement Representation of Binary tree with link

A: Introduction: Below a program to implement Representation of Binary tree with linked list. In java

Q: Q.31 Explain different authentication methods and protocol.

Q: Q.1 What are different encryption methods? Explain along with suitable example.

A: Encryption can be described as a technique in which information is tweaked in such a way that it…

Q: Q.6 Explain Substitution cipher.

A: Substitution Cipher: When the plain text is encrypted (which means hiding some data) then it becomes…

Q: Q.6 Explain Substitution cipher.

Q: 1. Write a SELECT statement that returns four columns based on the Invoice To column of the Invoices…

A: The complete answer in SQL query is below:

Q: Ned Up Middle Down Left 3, 5,6 7 Apu Center 3, 4 7 Right 3 2, 1,0 c. Complete the payoffs of the…

A: Answer: We need to fill the table so .we have filled with the proper explanation.

Q: arch on Principles of Network Security 3. Reconnaissance / Access / Denial of Service (DOS) 4.…

A: Lets see the solution.

Q: Based on the Python codes below, which of the following is/are true: Code A: Code B: Code C: Select…

A: We have to find which of the given codes is/are true and choose the correct answer from the given…

Q: How Command Groups Declare Dependences in Scheduling Kernels and Data Movement?

A: the collection of dependencies that must be met before the group's activity may be carried out These…

Q: /** Returns true if and only if A[start..end] is sorted in ascending order. * Preconditon: A is not…

A: Program Approach: Step 1: Import the Scanner class for taking user input. Step 2: Create a public…

Q: Write an application that reads three nonzero values entered by the user and determines and prints…

A: ALGORITHM:- 1. Take input for the three sides of a triangle from the user. 2. Check if they can…

Q: 2. In year of 2015, HTTP/2 is released. What are major goals of developing HTTP/2? Give 5…

A: Given : In year of 2015, HTTP/2 is released. What are major goals of developing HTTP/2?Give 5…

Q: In the IEEE 802.11 frames, when the values of, To DS and from DS are 11, its means the distribution…

A: ANSWER FOR 15: wireless area network

Q: I want this code in C++

A: The code has been converted into C++ using the respective libraries that are required to perform the…

Q: Explain Anomaly-based Instruction Detection System.

A: in the following section we will be discussing about the Anomaly-based instruction Detection System

Q: Construct the FIRST and FOLLOW for the grammar: A → BC | EFGH | H B → b C→CE E→→e E F→ CE G→g H→ h|e

A: Given statements A ::= BCA ::= EFGH A ::= HB ::= bC ::= cC ::= εE ::= eE ::= ε F ::= CE G ::= gH ::=…

Q: Q.14 What is Backdoors and Key Escr PGP ?

A: Lets see the solution.

Q: Fill in the blanks 1. The --------- of a number is defined to be the power to which some positive…

A: Dear student, As per our guideline we can answer only first three questions. Please repost rest of…

Q: Java program to multiply two matrices

A: We can multiply two matrices in java using binary * operator and executing another loop. A matrix is…

Q: UR Q.6 a) Given two prime numbers P = 17 and Q = 29 find out N, and D in an RSA encryption process.

Question

Haskell

3. The scalar product of two lists of integers xs and ys of length n is give by the sum of the
products of the corresponding integers:
n-1
Σ( xs, * ys;)
i=0
Using a list comprehension, define a function that returns the scalar product of two lists.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

emacs/lisp function Write a function that takes one parameter that is a list of numbers and returns true (t) if all the elements of the list are multiples of the first one and nil otherwise. This said, a list generated by the function make-multiples could be passed to this new function and the result should be true. On the other hand, show an example of a list that could not have been generated by the first function for which the result is still true.
6. Write a function DOT-PRODUCT that takes two lists, each list has the same number of elements, and produces the dot product of the vectors that they represent. For example, (DOT-PRODUCT '(1.2 2.0 -0.2) '(0.0 2.3 5.0)) -> 3.6 Hint: The key for designing a lisp function is using recursion.
Let xHead, yHead and zHead be the head pointers of 3 linked lists of integers (called X-list, Y-list and Z-list, respectively, from here). X-list and Y-list are each sorted (in non-decreasing order) in itself and each may be empty. Z-list is initially empty (i.e., zHead initially contains the null pointer). Develop and test a recursive C++ function called Merge2AscListsRecur that combines the nodes in X-list and Y-list into Z-list such that, after calling the function, Z-list is a sorted list (in non-decreasing order) containing all the nodes initially contained in X-list and Y-list – X-list and Y-list should both be empty after the call. Other specifications/requirements: ● Each node of the list has the following structure: struct Node{ int data; Node *link;}; ● The function should: ► Have only three parameters (each a pointer-to-Node) and no return value (be a void function). ► Not use any global variables or static local…
Define a recursive function named trim; it takes as its arguments a linked list (the head node of it) and a non-negative integer representing the index of an element in the list. The function mutates the linked list such that all elements that occur after the index is removed. Additionally, the function returns a linked list of all the elements that were moved. If the index value exceeds the length of the linked list, it should raise an IndexError. For example, if we defined a list as l1 = LN(1, LN(2, LN 3))) , calling the function would return the linked list LN(2, LN(3)), and the mutated l1 would become LN(1). You must use recursion. def trim(l: LN, index: int) -> LN:
Let xHead, yHead and zHead be the head pointers of 3 linked lists of integers (called X-list, Y-list and Z-list, respectively, from here). X-list and Y-list are each sorted (in non-decreasing order) in itself and each may be empty. Z-list is initially empty (i.e., zHead initially contains the null pointer). Develop and test a recursive C++ function called SortedMergeRecur that combines the nodes in X-list and Y-list into Z-list such that, after calling the function, Z-list is a sorted list (in non-decreasing order) containing all the nodes initially contained in X-list and Y-list – X-list and Y-list should both be empty after the call. Other specifications/requirements: ● Each node of the list has the following structure: struct Node{ int data; Node *link;}; ● The function should: ► Have only three parameters (each a pointer-to-Node) and no return value (be a void function). ► Not use any global variables or static local…
Language: C++ Solve the following problem using a Singly Linked List.Given a singly linked list of characters, write a function to make a word out of given letters in the list Example:Input:C->S->A->R->B->B->E->LNULLOutput:S->C->R->A->B->B->L->E->NULL
Define a function prefiaSum which takes a list of numbers as its argument and returns a list of sums of all prefixes of the list. For example: • prefixSum [1..10] => [1,3,6,10,15,21,28,36,45,55] prefixSum [2, 5]=> [2,7]
(a) Write a function top_students(marks) that takes as a parameter a non-empty list of (name, mark) tuples, where name is the name of a student (a string) and mark is the student's mark for some course (an int). The function returns a list of the names of all students whose mark equals that of the top student. If there is just a single student with the maximum mark, the return value will be a list of length 1, as in the first example in the table below. The names in the return list should be in the same order as in the input parameter list. Test Result marks = [('Beatrice', 50), ('Nerly', 90), ('Uniza', 70)] print(top_students(marks)) ['Nerly'] marks = [('Beatrice', 80), ('Nerly', 75), ('Uniza', 66), ('Joshua', 80)] print(top_students(marks)) ['Beatrice', 'Joshua'] (b) Write a function char_counts(string) that takes a string as a parameter and returns a dictionary in…
Use a list comprehension to define a Haskell function Vex that takes a list of Ord items and removes all occurrences of the largest item in the list. Given the empty list, Vex should return the empty list. Make good use of let and/or where.
OCAML programming language Cartesian map Use the built-in higher order functions and write a non-recursive functionval cart_fun : ('a -> 'b -> 'c) -> 'a list -> 'b list -> 'c list = <fun> which takes a function, and two lists as an input, and returns a third list whichcontains the result of the function applied on all possible pairs of elements from both input lists. # cart_fun ( * ) [1;2;2;6;3;9;1] [2;3];;- : int list = [2; 3; 4; 6; 4; 6; 12; 18; 6; 9; 18; 27; 2; 3]
1. Recursion & List processing Write a recursive function flatten that takes a list as an argument and returns the flat version of that list. For example, (flatten '(a (b c) d)) -> (a b c d) (flatten '(((a)) (b (c)) d)-> (a b c d)
SML programming Write one function du(a,b) which returns a list of a b times (b>=0). Must use identical function name and parameter(s).du(2,1) ⟶[2], du(4,3) ⟶[4,4,4]