Answer:
Explanation:
The ith column of an identity matrix is the unit vector ei (the vector whose ith entry is 1 and 0 elsewhere) It follows that the determinant of the identity matrix is 1, and the trace is n. When the identity matrix is the product of two square matrices, the two matrices are said to be the inverse of each other.
You will write code to manipulate strings using pointers but without using the string handling functions in string.h. Do not include string.h in your code. You will not get any points unless you use pointers throughout both parts.
You will read in two strings from a file cp4in_1.txt at a time (there will be 2n strings, and you will read them until EOF) and then do the following. You alternately take characters from the two strings and string them together and create a new string which you will store in a new string variable. You may assume that each string is no more than 20 characters long (not including the null terminator), but can be far less. You must use pointers. You may store each string in an array, but are not allowed to treat the string as a character array in the sense that you may not have statements like c[i] = a[i], but rather *c *a is allowed. You will not get any points unless you use pointers.
Example:
Input file output file
ABCDE APBQCRDSETFG
PQRSTFG arrow abcdefghijklmnopgrstuvwxyz
acegikmoqsuwyz
bdfhjlnprtvx
Solution :
#include [tex]$< \text{stdio.h} >$[/tex]
#include [tex]$< \text{stdlib.h} >$[/tex]
int [tex]$\text{main}()$[/tex]
{
[tex]$\text{FILE}$[/tex] *fp;
[tex]$\text{fp}$[/tex]=fopen("cp4in_1.txt","r");
char ch;
//while(1)
//{
while(!feof(fp))
{
char *[tex]$\text{s1}$[/tex],*[tex]$\text{s2}$[/tex],*[tex]$\text{s3}$[/tex];
[tex]$\text{s1}$[/tex] = (char*) [tex]$\text{malloc}$[/tex]([tex]$20$[/tex] * [tex]$\text{sizeof}$[/tex](char));
[tex]$\text{s2}$[/tex] = (char*) [tex]$\text{malloc}$[/tex]([tex]$20$[/tex] * [tex]$\text{sizeof}$[/tex](char));
[tex]$\text{s3}$[/tex] = (char*) [tex]$\text{malloc}$[/tex]([tex]$40$[/tex] * [tex]$\text{sizeof}$[/tex](char));
[tex]$\text{int i}$[/tex]=0,j=0,x,y;
while(1)
{
ch=getc(fp);
if(ch=='\n')
break;
*(s1+i)=ch;
i++;
}
while(1)
{
ch=getc(fp);
if(ch=='\n')
break;
*(s2+j)=ch;
j++;
}
for(x=0;x<i;x++)
{
*(s3+x)=*(s1+x);
}
for(y=0;y<j;x++,y++)
{
*(s3+x)=*(s2+y);
}
for(x=0;x<i+j;x++)
{
printf("%c",*(s3+x));
}
printf("\n");
getc(fp);
}
}
Write a Python class that inputs a polynomial in standard algebraic notation and outputs the first derivative of that polynomial. Both the inputted polynomial and its derivative should be represented as strings.
Answer:Python code: This will work for equations that have "+" symbol .If you want to change the code to work for "-" also then change the code accordingly. import re def readEquation(eq): terms = eq.s
Explanation:
Ten output devices you know
Note that common skills are listed toward the top, and less common skills are listed toward the bottom. According to O*NET, what are common skills needed by Secondary School Special Education Teachers? Check all that apply.
instructing
installation
learning strategies
repairing
active listening
technology design
Answer:
A. Instucting C. Learning Strategies E. Active Listening
Explanation:
Got it right on assignment
discuss five domains of Instructional technology
Answer:
Design, Development, Utilization, Management, and Evaluation.
places where computer are used
Answer:
Banks and financial.
Business.
Communication.
Defense and military.
Education.
Internet.
Medical.
Transportation.
etc..
Answer:
businesses, schools, colleges, medical offices, banks.
Define a class Complex to represent complex numbers. All complex numbers are of the form x + yi, where x and y are real numbers, real numbers being all those numbers which are positive, negative, or zero.
Answer:
The program in C++ is as follows:
#include<bits/stdc++.h>
using namespace std;
class Complex {
public:
int rl, im;
Complex(){ }
Complex(int Real, int Imaginary){
rl = Real; im = Imaginary;
}
};
int main(){
int real, imag;
cout<<"Real: "; cin>>real;
cout<<"Imaginary: "; cin>>imag;
Complex ComplexNum(real, imag);
cout<<"Result : "<< ComplexNum.rl<<" + "<<ComplexNum.im<<"i"<<endl;
}
Explanation:
See attachment for explanation
Write an application that combines several classes and interfaces.
Answer:
Explanation:
The following program is written in Java and it combines several classes and an interface in order to save different pet objects and their needed methods and specifications.
import java.util.Scanner;
interface Animal {
void animalSound(String sound);
void sleep(int time);
}
public class PetInformation {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
String petName, dogName;
String dogBreed = "null";
int petAge, dogAge;
Pet myPet = new Pet();
System.out.println("Enter Pet Name:");
petName = scnr.nextLine();
System.out.println("Enter Pet Age:");
petAge = scnr.nextInt();
Dog myDog = new Dog();
System.out.println("Enter Dog Name:");
dogName = scnr.next();
System.out.println("Enter Dog Age:");
dogAge = scnr.nextInt();
scnr.nextLine();
System.out.println("Enter Dog Breed:");
dogBreed = scnr.nextLine();
System.out.println(" ");
myPet.setName(petName);
myPet.setAge(petAge);
myPet.printInfo();
myDog.setName(dogName);
myDog.setAge(dogAge);
myDog.setBreed(dogBreed);
myDog.printInfo();
System.out.println(" Breed: " + myDog.getBreed());
}
}
class Pet implements Animal{
protected String petName;
protected int petAge;
public void setName(String userName) {
petName = userName;
}
public String getName() {
return petName;
}
public void setAge(int userAge) {
petAge = userAge;
}
public int getAge() {
return petAge;
}
public void printInfo() {
System.out.println("Pet Information: ");
System.out.println(" Name: " + petName);
System.out.println(" Age: " + petAge);
}
//The at (email symbol) goes before the Override keyword, Brainly detects it as a swearword and wont allow it
Override
public void animalSound(String sound) {
System.out.println(this.petName + " says: " + sound);
}
//The at (email symbol) goes before the Override keyword, Brainly detects it as a swearword and wont allow it
Override
public void sleep(int time) {
System.out.println(this.petName + " sleeps for " + time + "minutes");
}
}
class Dog extends Pet {
private String dogBreed;
public void setBreed(String userBreed) {
dogBreed = userBreed;
}
public String getBreed() {
return dogBreed;
}
}
PLS HELP SO I CAN PASS WILL GIVE BRAINLINESS AND 30 POINTS
Charlie Chaplin is know for developing
a
The Dramedy
b
Early Special Effects
c
Slap-Stick
d
The Prat-Fall
Question 2 (1 point)
Chaplin felt it was important for the audience to
a
turn off their cellphones during the movie.
b
believe the stunts were real by doing them himself.
c
escape from their problems by avoiding difficult topics.
d
have an emotional connection with the characters.
Question 3 (3 points)
Match the silent film with its modern influence
Column A
1.
Metropolis:
Metropolis
2.
The Kid:
The Kid
3.
Nosferatu:
Nosferatu
Column B
a.Freddy Kruger
b.The Simpsons
c.Sharknado
d.Star Wars
Question 4 (1 point)
How did Nosferatu change the Vampire cannon (story)?
a
Vampires are friendly
b
Vampires can be killed by sunlight
c
Vampires can become invisible
d
Vampires can be repelled by garlic
Question 5 (1 point)
Metropolis was the first film to
a
have religious undertones.
b
use special effects.
c
have humanoid robots.
d
use Gothic Imagery.
movies being the kid , nosferatu , and metropolis
Answer:
a
have religious undertones.
b
use special effects.
c
have humanoid robots.
d
use Gothic Imagery.
Explanation:
The city of Green Acres is holding an election for mayor. City officials have decided to automate the process of tabulating election returns and have hired your company to develop a piece of software to monitor this process. The city is divided into five precincts. On election day, voters go to their assigned precinct and cast their ballots. All votes cast in a precinct are stored in a data file that is transmitted to a central location for tabulation.
Required:
Develop a program to count the incoming votes at election central.
Answer:
Explanation:
The following program asks the user to enter the precinct number and then loops to add votes until no more votes need to be added. Then it breaks the loop and creates a file called results to save all of the results for that precinct.
precinct = input("Enter Precinct Number: ")
option1 = 0
option2 = 0
while True:
choice = input("Enter your vote 1 or 2: ")
if int(choice) == 1:
option1 += 1
else:
option2 += 1
endVote = input("Vote again y/n")
if endVote.lower() != 'y':
break
f = open("results.txt", "w")
f.write("Precinct " + precinct + ": \nOption 1: " + str(option1) + "\nOption 2: " + str(option2))
Parts of a computer software
Answer:
I think application software
utility software
networking software
HURRY- I’ll give 15 points and brainliest answer!!
How do you insert text into a presentation??
By selecting text from the insert menu
By clicking in the task pane and entering text
By clicking in a placeholder and entering text
By drawing a text box clicking in it and entering text
(This answer is multiple select)
Answer:
the last one the drawing thingy:)))
The function below takes one parameter: an integer (begin). Complete the function so that it prints every other number starting at begin down to and including 0, each on a separate line. There are two recommended approaches for this: (1) use a for loop over a range statement with a negative step value, or (2) use a while loop, printing and decrementing the value each time.
1 - def countdown_trigger (begin):
2 i = begin
3 while i < 0:
4 print(i)
5 i -= 1 Restore original file
Answer:
Follows are code to the given question:
def countdown_trigger(begin):#defining a method countdown_trigger that accepts a parameter
i = begin#defining variable that holds parameter value
while i >= 0:#defining while loop that check i value greater than equal to0
print(i)#print i value
i -= 2 # decreasing i value by 2
print(countdown_trigger(2))#calling method
Output:
2
0
None
Explanation:
In this code, a method "countdown_trigger" is declared, that accepts "begin" variable value in its parameters, and inside the method "i" declared, that holds parameters values.
By using a while loop, that checks "i" value which is greater than equal to 0, and prints "value" by decreasing a value by 2.
3. Write a program to find the area of a triangle using functions. a. Write a function getData() for user to input the length and the perpendicular height of a triangle. No return statement for this function. b. Write a function trigArea() to calculate the area of a triangle. Return the area to the calling function. c. Write a function displayData() to print the length, height, and the area of a triangle ( use your print string) d. Write the main() function to call getData(), call trigArea() and call displayData().
Answer:
The program in C++ is as follows:
#include<iostream>
using namespace std;
void displayData(int height, int length, double Area){
printf("Height: %d \n", height);
printf("Length: %d \n", length);
printf("Area: %.2f \n", Area);
}
double trigArea(int height, int length){
double area = 0.5 * height * length;
displayData(height,length,area);
return area;
}
void getData(){
int h,l;
cin>>h>>l;
trigArea(h,l);
}
int main(){
getData();
return 0;
}
Explanation:
See attachment for complete program where comments are used to explain the solution
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Answer:
nice................
Answer:
24
Explanation:
Use the drop-down menus to answer questions about the options in the Window group. Which command allows a user to view presentations side by side? Which command allows a user to show one presentation overlapping another? Which command allows a user to jump from one presentation to another?
Answer:
Look at the attached file for the correct answer to this question on edge:
Explanation:
The command allows a user to jump from one presentation to another Switch windows.
What is Switch windows?Flip is similar to the Task view feature, although it operates somewhat differently. Click the Task view button in the taskbar's lower-left corner to launch Task view.
As an alternative, you can use your keyboard's Windows key and Tab. You can click on any open window to select it from a list of all your open windows.
It may be challenging to view the desktop if you have many windows open at once. When this occurs, you can minimize all currently open windows by clicking the taskbar's bottom-right corner. Simply click it once again to bring back the minimized windows.
Therefore, The command allows a user to jump from one presentation to another Switch windows.
To learn more about Windows, refer to the link:
https://brainly.com/question/13502522
#SPJ3
d) State any three (3) reasons why users attach speakers to their computer?
Answer:
the purpose of speakers is to produce audio output that can be heard by the listener. Speakers are transducers that convert electromagnetic waves into sound waves. The speakers receive audio input from a device such as a computer or an audio receiver.
Explanation: Hope this helps!
which software manages the functioning of the entire computer system
Which of the following is a form of media?Check all that apply.
A. a brochure distributed to many people
B. a diary
C. an email to a friend
D. a blog
Answer:
A. a brochure distributed to many people.
D. a blog.
Explanation:
Communication can be defined as a process which typically involves the transfer of information from one person (sender) to another (recipient), through the use of semiotics, symbols and signs that are mutually understood by both parties.
Generally, the linear model of communication comprises of four (4) main components and these are;
1. Sender (S): this is typically the source of information (message) or the originator of a message that is being sent to a receiver. Thus, they are simply the producer of a message.
2. Channel (C): this is the medium used by the sender for the dissemination or transmission of the message to the recipient. For example, telephone, television, radio, newspapers, billboards etc.
3. Message (M): this is the information or data that is being sent to a recipient by a sender. It could be in the form of a video, audio, text message etc.
4. Receiver (R): this is typically the destination of information (message) or the recipient of a message that is being sent from a sender.
Hence, the following are forms of media (communication channel);
I. A brochure distributed to many people. It comprises of printed textual informations used mainly for promotional purposes.
II. A blog. It is an online website that contains both textual and multimedia messages, especially as a news platform.
What methods do phishing and spoofing scammers use?
Answer:
please give me brainlist and follow
Explanation:
There are various phishing techniques used by attackers:
Installing a Trojan via a malicious email attachment or ad which will allow the intruder to exploit loopholes and obtain sensitive information. Spoofing the sender address in an email to appear as a reputable source and request sensitive information
Write a client program Client Sorting and in the main method:
1. Call a method, SelectionSorter() that accepts an integer array as a parameter and sorts the elements in the array using the selection sort algorithm where it picks the maximum value in the array in each pass. Print the array before it is sorted in the main method, then after it is sorted in SelectionSorter().
2. Call a method, BubbleSorter that accepts an integer array as a parameter and sorts the elements in the array in descending order (highest number first, then the second highest and so on) using the bubble sort algorithm. Print the array before it is sorted in the main method, then after it is sorted in BubbleSortero.
3. Call a method, InsertSorter() that accepts an integer array as a parameter and sorts the elements in the array using the insertion sort algorithm. Print the array before it is sorted in the main method, then after it is sorted in InsertSortero.
Answer:
Explanation:
The following code is written in Java. It creates a method for each of the sorting algorithms and one method to reset the array and print the original, so that all algorithms can be tested with the same array.The entire program code is below.
import java.util.Scanner;
class Brainly {
static int[] arr;
public static void main(String[] args) {
// Print Unsorted Array and Call Selection Sort and print
resetArray();
SelectionSorter(arr);
System.out.print("\nSelection Sort Array: ");
for (int x : arr) {
System.out.print(x + ", ");
}
//Reset Array and call Bubble Sort and print
System.out.println('\n');
resetArray();
BubbleSorter(arr);
System.out.print("\nBubble Sort Array: ");
for (int x : arr) {
System.out.print(x + ", ");
}
//Reset Array and call Insert Sort and print
System.out.println('\n');
resetArray();
InsertSorter(arr);
System.out.print("\nInsert Sort Array: ");
for (int x : arr) {
System.out.print(x + ", ");
}
}
public static void resetArray() {
arr = new int[]{10, 14, 28, 11, 7, 16, 30, 50, 25, 18};
System.out.print("Unsorted Array: ");
for (int x : arr) {
System.out.print(x + ", ");
}
}
public static void SelectionSorter(int[] arr) {
for (int i = 0; i < arr.length - 1; i++) {
int index = i;
for (int j = i + 1; j < arr.length; j++) {
if (arr[j] < arr[index]) {
index = j;//searching for lowest index
}
}
int smallerNumber = arr[index];
arr[index] = arr[i];
arr[i] = smallerNumber;
}
}
static void BubbleSorter(int[] arr) {
int n = arr.length;
int temp = 0;
for (int i = 0; i < n; i++) {
for (int j = 1; j < (n - i); j++) {
if (arr[j - 1] > arr[j]) {
//swap elements
temp = arr[j - 1];
arr[j - 1] = arr[j];
arr[j] = temp;
}
}
}
}
public static void InsertSorter(int arr[]) {
int n = arr.length;
for (int j = 1; j < n; j++) {
int key = arr[j];
int i = j - 1;
while ((i > -1) && (arr[i] > key)) {
arr[i + 1] = arr[i];
i--;
}
arr[i + 1] = key;
}
}
}
I want to know the basic of Excel
Answer:
Use Pivot Tables to recognize and make sense of data.
Add more than one row or column.
Use filters to simplify your data.
Remove duplicate data points or sets.
Transpose rows into columns.
Split up text information between columns.
Use these formulas for simple calculations.
Get the average of numbers in your cells.
Write a program named HoursAndMinutes that declares a minutes variable to represent minutes worked on a job, and assign a value to it. Display the value in hours and minutes. For example, 197 minutes becomes 3 hours and 17 minutes.'
Answer:
Explanation:
The following code is written in Python, it asks the user for the number of minutes worked. Divides that into hours and minutes, saves the values into separate variables, and then prints the correct statement using those values. Output can be seen in the attached image below.
import math
class HoursAndMinutes:
min = input("Enter number of minutes worked: ")
hours = math.floor(int(min) / 60)
minutes = (int(min) % 60)
print(str(hours) + " hours and " + str(minutes) + " minutes")
a buffer storage that improve computer performance by reducing access time is
(The Person, Student, Employee, Faculty, and Staff classes) Design a class named Person and its two subclasses named Student and Employee. Make Faculty and Staff subclasses of Employee. A person has a name, address, phone number, and email address.A student has a class status (freshman, sophomore, junior, or senior). Define the status as a constant. An employee has
Answer:
Explanation:
The following code is written in Java and creates all the classes as requested with their variables, and methods. Each extending to the Person class if needed. Due to technical difficulties I have attached the code as a txt file below, as well as a picture with the test output of calling the Staff class.
Which best describes the possible careers based on
these employers?
Yoshi worked in Logistics Planning and Management
Services, Dade worked in Sales and Service, Lani
worked in Transportation Systems/Infrastructure
Planning, Management, and Regulation, and Miki
worked in Transportation Operations.
Yoshi worked in Transportation Operations, Dade
worked in Logistics Planning and Management
Services, Lani worked in Sales and Service, and Miki
worked in Transportation Systems/Infrastructure
Planning, Management, and Regulation
Yoshi worked in Health, Safety, and Environmental
Management, Dade worked in Transportation
Operations, Lani worked in Facility and Mobile
Equipment Maintenance, and Miki worked in
Warehousing and Distribution Center Operations.
Answer:
It's c bodie I'm fr on this question rn lol
Answer:
the guy above is right, its c
Explanation:
edge 2021
what should the timing of transition slides be per minute? maintain the flow of the presentation to ______ slides per minute.
Answer:
1-2
Explanation:
It depends on the amount of information that you have on each slide. You want to make sure you're not going too fast but also make sure you arent taking up to much time. Be sure to speak clearly it will make the presentation better by looking clean and time organized. hope this helps :)
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Select all benefits of using a wiki for business.
inexpensive
accessible twenty-four hours per day and seven days per week
online conversation
quick and easy editing
document sharing
Answer:
B, D, E is the answers I think
Answer:
Accessible twenty-four hours per day and seven days per week
Quick and easy sharing
Document sharing
4 reasons why users attach speakers
to their computers
Answer: we connected speakers with computers for listening voices or sound because the computer has not their own speaker. the purpose of speakers is to produce audio output that can be heard by the listener. Speakers are transducers that convert electromagnetic waves into sound waves. The speakers receive audio input from a device such as a computer or an audio receiver.
Explanation: Hope this helps!
SimpleScalar is an architectural simulator which enables a study of how different pro-cessor and memory system parameters affect performance and energy efficiency.
a. True
b. False
Answer:
a. True
Explanation:
SimpleScalar refers to a computer architectural simulating software application or program which was designed and developed by Todd Austin at the University of Wisconsin, Madison, United States of America. It is an open source simulator written with "C" programming language and it's used typically for modelling virtual computer systems having a central processing unit (CPU), memory system parameters (hierarchy), and cache.
The main purpose of SimpleScalar is to avail developers or manufacturers the ability to compare two computers based on their capacities (specifications) without physically building the two computers i.e using a simulation to show or illustrate that computer B is better than computer A, without necessarily having to physically build either of the two computers.
Hence, it is an architectural simulator which makes it possible to study how different central processing units (CPUs), memory hierarchy or system parameters and cache affect the performance and energy efficiency of a computer system.