Answer:
See explaination
Explanation:
#include <iostream>
#include <iterator>
#include <list>
using namespace std;
list <int> :: iterator maxLoc(list<int>& alist){
list<int> :: iterator max;
list<int> :: iterator it;
int maxs = -199999999;
for (it = alist.begin(); it != alist.end();it++){
int c = *it;
if(maxs < c){
max = it;
maxs = *it;
}
}
alist.erase(max);
return max;
}
list <char> :: iterator maxLoc(list<char>& alist){
list<char> :: iterator max;
list<char> :: iterator it;
int maxs = -199999999;
for (it = alist.begin(); it != alist.end();it++){
char c = *it;
if(maxs < c){
max = it;
maxs = *it;
}
}
alist.erase(max);
return max;
}
int main() {
int intArr[] = {23, 49, -3, 29, 17, 200, 38, 93, 40};
int intSize = sizeof(intArr) / sizeof(int);
list <int> intlist(intArr, intArr + intSize);
list<int> :: iterator it;
for(int i = 0;i<intSize;i++){
list<int> :: iterator m = maxLoc(intlist);
cout << *m << endl;
}
char chrArr[] = "Hello World!";
int chrSize = sizeof(chrArr);
list<char> chrlist(chrArr, chrArr + chrSize);
for(int j = 0;j<chrSize;j++){
list<char> :: iterator m = maxLoc(chrlist);
cout << *m << endl;
}
}
Throughout the semester we have looked at a number of C++ and Java examples. We have seen examples of iterators in both languages. You may have used iterators in other languages (e.g., Python or PHP). Briefly describe how iterators allow us to develop our ADT interfaces and work with ADT interfaces provided by others (e.g., the std::vector in C++ or java.util.ArrayList in Java).
Answer:
Check the explanation
Explanation:
Iterators in C++
==================
Iterators are used to point at the memory addresses of STL containers. They are primarily used in sequence of numbers, characters etc. They reduce the complexity and execution time of program.
Operations of iterators :-
1. begin() :- This function is used to return the beginning position of the container.
2. end() :- This function is used to return the after end position of the container.
// C++ code to demonstrate the working of
// iterator, begin() and end()
#include<iostream>
#include<iterator> // for iterators
#include<vector> // for vectors
using namespace std;
int main()
{
vector<int> ar = { 1, 2, 3, 4, 5 };
// Declaring iterator to a vector
vector<int>:: iterator ptr;
// Displaying vector elements using begin() and end()
cout << "The vector elements are : ";
for (ptr = ar. begin(); ptr < ar. end(); ptr++)
cout << *ptr << " ";
return 0;
}
Iterators in Java
==================
‘Iterator’ is an interface which belongs to collection framework. It allows us to traverse the collection, access the data element and remove the data elements of the collection.
java. util package has public interface Iterator and contains three methods:
boolean hasNext(): It returns true if Iterator has more element to iterate.
Object next(): It returns the next element in the collection until the hasNext()method return true. This method throws ‘NoSuchElementException’ if there is no next element.
void remove(): It removes the current element in the collection. This method throws ‘IllegalStateException’ if this function is called before next( ) is invoked.
// Java code to illustrate the use of iterator
import java. io.*;
import java. util.*;
class Test {
public static void main(String[] args)
{
ArrayList<String> list = new ArrayList<String>();
list. add("A");
list. add("B");
list. add("C");
list. add("D");
list. add("E");
// Iterator to traverse the list
Iterator iterator = list. iterator();
System. out. println("List elements : ");
while (iterator. hasNext())
System. out. print(iterator. next() + " ");
System. out. println();
}
}
Every class that implements Iterable interface appropriately, can be used in the enhanced For loop (for-each loop). The need to implement the Iterator interface arises while designing custom data structures.
Example:
for(Item item: customDataStructure) {
// do stuff
}
To implement an iterable data structure, we need to:
Implement Iterable interface along with its methods in the said Data Structure
Create an Iterator class which implements Iterator interface and corresponding methods.
We can generalize the pseudo code as follows:
class CustomDataStructure implements Iterable<> {
// code for data structure
public Iterator<> iterator() {
return new CustomIterator<>(this);
}
}
class CustomIterator<> implements Iterator<> {
// constructor
CustomIterator<>(CustomDataStructure obj) {
// initialize cursor
}
// Checks if the next element exists
public boolean hasNext() {
}
// moves the cursor/iterator to next element
public T next() {
}
// Used to remove an element. Implement only if needed
public void remove () {
// Default throws Unsupported Operation Exception.
}
}
Note: The Iterator class can also, be implemented as an inner class of the Data Structure class since it won’t be used elsewhere.
g Write a user-defined MATLAB function for the following math function: y ( x )=(−.2 x 3 +7 x 2 )e −.3x The input to the function is x and the output is y. Write the function such that x can be a vector (use element-by-element operations). a) Use the function to calculate y(-1.5) and y(5) b) Use the function to make a plot of the function y(x) for -2≤x≤6
Answer:
Go to explaination for the step by step answer.
Explanation:
a)Code
function[y]=operation(x) % this function takes x as input and returns y as output
y=(-0.2*x^3+7*x^2)*exp(-0.3*x)
end
% call this function in command widow by typing operation(value of x) like shown in figure in the first attachment.
b. write a code of above function in one script window and save the code with same name as name of function that is name of script should be saved as operation.Now copy paste the below code in new script window and run the code
clc
clear all
x=-2:.1:6
n=length(x)
for i=1:1:n
a=x(i)
y(i)=operation(a)
end
plot(y,x)
xlabel('X')
ylabel('Y')
Please kindly check attachment for pictorial answers that supports the code.
Write a statement that declares a variable of the enumerated data type below. enum Flower { ROSE, DAISY, PETUNIA } The variable should be named flora. Initialize the variable with the ROSE constant.
Answer:
enum Flower { ROSE, DAISY, PETUNIA }
Flower flora = Flower.ROSE
Explanation:
Flower is of Enumeration data type and it contains the constants ROSE, DAISY and PENTUA.
To write a statement that declares a variable of that type you use
Var_of_enum_type Var_name
And to initialize it with a constant of the enumeration data type you use the dot (.) operator.
Var_of_enum_type.CONSTANT
As we discussed in class, with the explosion of huge volumes of unstructured data, a new breed of database technologies have emerged and have become popular. Clearly, these new database technologies like Dynamo, Bigtable, and Cassandra are critical technology to the companies that created them. Why did they allow their employees to publish academic papers about them? Why did they not keep them as proprietary secrets? (
1. The reason that Am..on (creator of Dynamo), G..gle (creator of Bigtable), and F...book (creator of Cassandra) allowed their employees to publish academic papers about the new breed of database technologies is that technologies were custom-made.
A custom-made technology is created specifically to meet some peculiar business strategies and cannot be utilized elsewhere.
2. The reason the companies did not keep these technologies as proprietary secrets is that other companies cannot use the technologies in their businesses since they were created to meet specific business requirements.
What are database technologies?
Database technologies are technologies that collect, store, organize, and process information and unstructured data for defined users. Some database technologies come in many shapes and sizes. Examples of database technologies include Dynamo, Bigtable, and Cassandra.
Learn more about database technologies at https://brainly.com/question/15334693
Final answer:
Companies like those who created Dynamo, Bigtable, and Cassandra published academic papers about their innovations to establish themselves as leaders, attract top talent, and foster adoption of their technologies as industry standards, despite the potential risk of giving away proprietary information.
Explanation:
The question asks why companies like those who created Dynamo, Bigtable, and Cassandra chose to publish academic papers about their database technologies, rather than keeping them as proprietary secrets. The decision to openly disclose information about these new database technologies can be attributed to several strategic advantages. First, publishing helps in establishing these companies as leaders in technological innovation, attracting top talent who want to work on cutting-edge projects. Furthermore, by sharing the innovations, these companies foster a community of developers who can contribute to the improvement of the technology, indirectly benefiting the original creators. Lastly, it encourages the adoption of their technologies as standards in the industry, which can lead to wider use and integration into other services, products, and technologies.
These reasons collectively contribute to why companies might decide to publish their innovations in the realm of big data and database technologies. Even though it might seem counterintuitive at first to share proprietary technologies, the long-term benefits of establishing industry standards, fostering a collaborative ecosystem, and attracting top talent can outweigh the risks of competitors gaining insights into their technologies.
Enter a formula in cell B25 to calculate the daily bill for Monday, July 29. The formula should calculate the total billable hours for the day (cell B23) times the billable rate (B4). Be sure to use an absolute cell reference for the billable rate.
Answer:
=($B$4 * B23)
Explanation:
Given
Billable Rate: B4
Total Billable Hours: B23
Required:
Daily Bill: B25
Write the following formula in cell B25
=($B$4 * B23)
The question asks that the cell for billable rate should be referenced using the absolute cell reference.
To use absolute reference in a cell, we start by writing a dollar sign and we also separate the cell name and the cell number with a dollar sign.
Hence, cell B4 becomes $B$4
Also, the question asks that the cell $B$4 be multiplied by cell B23.
To write a formula in Excel, we start by writing the equal to sign (=), then we continue with the expression itself
$B$4 multiplied by cell B23 will be written as $B$4 * B23
So, the full formula to calculate daily bill that'll be written in cell B25 becomes is =($B$4 * B23)
The Excel formula in cell B25 that can be used to calculate the daily bill for Monday, July 29 is =($B$4 × B23)
What is Excel Formula?
An excel formula represents the expression of a code in an Excel sheet that operates within a range of cell(s).
From the parameters given:
The billable rate = B4The total Billable hours = B23By using the absolute reference for billable rate, we need to begin the formula with a $ sign, the cell name in conjunction with the cell number is being separated by a $ sign.
Therefore, the cell in B4 can be written as:
$B$4Now, multiplying it with cell in B23, we have using the excel formula method, we have:
=($B$4 × B23)
Learn more about the Excel Formula here:
https://brainly.com/question/25879801
Write a function in python that computes and returns the sum of the digits for any integer that is between 1 and 999, inclusive. Use the following function header: def sum_digits(number): Once you define your function, run the following examples: print(sum_digits(5)) print(sum_digits(65)) print(sum_digits(658)) Note: Do not hard-code your function. Your function should run for any number between 1 and 999. Your function should be able to decide if the number has 1 digit, 2 digits, or 3 digits.
Answer:
def sum_digits(number):
total = 0
if 1 <= number <= 999:
while number > 0:
r = int (number % 10)
total +=r
number /= 10
else:
return -1
return total
print(sum_digits(658))
Explanation:
Write a function named sum_digits that takes one parameter, number
Check if the number is between 1 and 999. If it is, create a while loop that iterates until number is greater than 0. Get the last digit of the number using mudulo and add it to the total. Then, divide the number by 10 to move to the next digit. This process will continue until the number is equal to 0.
If the number is not in the given range, return -1, indicating invalid range.
Call the function and print the result
Write an if-else statement with multiple branches. If givenYear is 2101 or greater, print "Distant future" (without quotes). Else, if givenYear is 2001 or greater (2001-2100), print "21st century".
Answer:
import java.util.Scanner;
public class num9 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("Enter year");
int givenYear =in.nextInt();
if(givenYear>=2101){
System.out.println("Distant Future");
}
else if(givenYear>=2001){
System.out.println("21st Century");
}
}
}
Explanation:
Using Java programming LanguageImport Scanner class to receive user input of the variable givenYearUse if statement to check the first condition if(givenYear>=2101)Use else if statement to check the second condition if(givenYear>=2001)print Distant future and 21st century respectivelyPurchasing services from a cloud provider has many advantages, as was discussed in Section 7.5. However, the cloud can also create problems with regard to your business or research environment. For each of the following areas, discuss problems that could occur when you purchase cloud services to handle your company's data storage backup.
a. Internet outages
b. Data security
c. Data inflexibility
d. Customer support
Answer:
See explaination
Explanation:
Kindly check the attachment for the details
Write a program C statement to declare and initialize an array named afTest1 type float to store
5 test marks which are 90,30, 25, 45, 55. The program should print all the values that are stored
in the array.
Answer:
#include <stdio.h>
int main()
{
float afTest1[5] = {90, 30, 25, 45, 55};
for (int i = 0; i < 5; i++) {
printf("%f ", afTest1[i]);
}
return 0;
}
Explanation:
Initialize the elements of the array as 90, 30, 25, 45, 55
Create a for loop that iterates through the array
Inside the loop, print each element using printf function
The Account class Create a class named Account, which has the following private properties: number: long balance: double Create a no-argument constructor that sets the number and balance to zero. Create a two-parameter constructor that takes an account number and balance. First, implement getters and setters: getNumber(), getBalance(), setBalance(double newBalance). There is no setNumber() -- once an account is created, its account number cannot change. Now implement these methods: void deposit(double amount) and void withdraw(double amount). For both these methods, if the amount is less than zero, the account balance remains untouched. For the withdraw() method, if the amount is greater than the balance, it remains untouched. Then, implement a toString() method that returns a string with the account number and balance, properly labeled.
ANSWER:
See answer and explanation attached
Answer:
It looks as if you are in one of the COMSC 075 classes at the school where I teach -- this is one of your assignments.
If you copy and paste someone’s answer, all you learn is how to copy and paste. That may get you through the course with a passing grade, but when you are on the job and get to your first code review and someone asks you why you decided to code something one way instead of another -- you’ll be stuck, because you will have no idea why your copy-and-pasted code works (or doesn’t).
If you’re having trouble understanding how to approach the problem, contact one of the instructors so you can write the program yourself and understand what it’s doing. We’re available online for office hours via video conference. Just ask!
Explanation:
6.1.3: Function call with parameter: Printing formatted measurement. Define a function PrintFeetInchShort, with int parameters numFeet and numInches, that prints using ' and " shorthand. End with a newline. Ex: PrintFeetInchShort(5, 8) prints: 5' 8" Hint: Use \" to print a double quote.
Answer:
public class Main
{
public static void main(String[] args) {
PrintFeetInchShort(5, 8);
}
public static void PrintFeetInchShort(int numFeet, int numInches) {
System.out.println(numFeet + "'" + " " + numInches + "\"");
}
}
Explanation:
Create a function called PrintFeetInchShort that takes two parameters, numFeet, and numInches
Print the given values in required format. Use System.out.println to print the values, ends with a new line.
Inside the main, call the function with two integers as seen in the example
Our goal here is to predict whether an accident just reported will involve an injury (MAX_SEV_IR = 1 or 2) or will not (MAX_SEV_IR = 0). For this purpose, create a dummy variable called INJURY that takes the value "yes" if MAX_SEV_IR = 1 or 2, and otherwise "no."
Explanation:
The outlines given in question statement can be written in many programming languages. The below program would be written in C language, which is one of the basic computer languages
Program code
String main (int MAX_SEV_IR)
{
string INJURY
if (MAX_SEV_IR = =1 or MAX_SEV_IR == 2)
INJURY = "yes"
elseif (MAX_SEV_IR = =0)
INJURY = "No"
else
INJURY = "Invalid data"
return INJURY
}
Answer:
# main function is defined
def main():
# the value of MAX_SEV_IR is gotten
# from the user via keyboard input
MAX_SEV_IR = int(input ("Enter MAX_SEV_IR: ")
# if statement to check for prediction
# if MAX_SEV_IR == 1 or 2
# then there is injury and it is displayed
if (MAX_SEV_IR == 1 or MAX_SEV_IR == 2):
print("INJURY = ", injury)
print("PREDICTION: Accident just reported will involve an injury")
# else if MAX_SEV_IR == 0 then no
# injury and it is displayed
elif (MAX_SEV_IR == 0):
injury = "NO"
print("INJURY = ", injury)
print("PREDICTION: Accident just reported will not involve an injury")
# the call main function to execute
if __name__ = '__main__':
main()
Explanation:
The code is written in Python and well commented.
In the simulation, player 2 will always play according to the same strategy. The number of coins player 2 spends is based on what round it is, as described below. (a) You will write method getPlayer2Move, which returns the number of coins that player 2 will spend in a given round of the game. In the first round of the game, the parameter round has the value 1, in the second round of the game, it has the value 2, and so on. The method returns 1, 2, or 3 based on the following rules. If round is divisible by 3, then return 3. If round is not divisible by 3 but is divisible by 2, then return 2. If round is not divisible by 3 and is not divisible by 2, then return 1. Complete method getPlayer2Move below by assigning the correct value to result to be returned.
Final answer:
To determine the number of coins that player 2 will spend in a given round of the game, check the rules based on the value of the round: divisible by 3 = 3 coins, divisible by 2 but not by 3 = 2 coins, not divisible by 3 and not divisible by 2 = 1 coin.
Explanation:
To determine the number of coins that player 2 will spend in a given round of the game, we need to check the rules based on the value of the round:
If the round is divisible by 3, player 2 will spend 3 coins.
If the round is not divisible by 3 but is divisible by 2, player 2 will spend 2 coins.
If the round is not divisible by 3 and not divisible by 2, player 2 will spend 1 coin.
So, the method getPlayer2Move should be defined as follows:
public
int getPlayer2Move(int round)
{
if (
round % 3 == 0) { return 3;
}
else if
(
round % 2 == 0
) {
return 2;
} else {
return 1;
} }
Final answer:
The getPlayer2Move method returns 1, 2, or 3 based on the given rules.
Explanation:
The method getPlayer2Move returns 1, 2, or 3 based on the rules given in the question. If the round number is divisible by 3, the method returns 3. If the round number is not divisible by 3 but is divisible by 2, the method returns 2. If the round number is not divisible by 3 and not divisible by 2, the method returns 1. For example, if the round number is 4, which is divisible by 2 but not divisible by 3, the method would return 2.
Write a Python program that gets a number using keyboard input. (Remember to use input for Python 3 but raw_input for Python 2.)
If the number is positive, the program should call countdown. If the number is negative, the program should call countup. Choose for yourself which function to call (countdown or countup) for input of zero.
Provide the following.
The code of your program.
Output for the following input: a positive number, a negative number, and zero.
An explanation of your choice for what to call for input of zero.
Answer:
Complete Python code along with step by step explanation is provided below.
Python Code:
# create a recursive countdown function that will count in decreasing order
def countdown(n):
if n >= 0:
print(n)
countdown(n-1)
# create a recursive countup function that will count in increasing order.
def countup(n):
if n <= 0:
print(n)
countup(n+1)
# driver code
def main():
# get input from the user
n = int(input("Please enter any number: "))
# call the countdown function if input n is zero or greater than zero.
# whether you choose countdown or countup for input n the outcome will be same in both cases
if n >= 0:
countdown(n)
# call the countup function for the remaining case that is n is less than zero.
else:
countup(n)
# call the main function
main()
Output:
Test 1:
Please enter any number: 5
5
4
3
2
1
0
Test 2:
Please enter any number: -6
-6
-5
-4
-3
-2
-1
0
Test 3:
Please enter any number: 0
0
Following are the python program to the given question:
Program Explanation:
Defining two methods "countdown, countup" that takes one parameter.In both methods, it uses an if block that checks the parameter value and prints its value with the message.In the next step, the "n" variable is defined that inputs the value and uses the if block that checks the value and calls the above method accordingly.Program:
def countdown(n):#defining a method
if n <= 0:#defining an if block that checks n value less than equal to 0
print('Blastoff!')#print message
else:#defining else block
print(n)#print number value
countdown(n - 1)#calling method countdown
def countup(n):#defining countup method that takes one parameter
if n >= 0:#defining if block that checks parameter value greater than equal to 0
print('Blastoff!')#print message
else:#defining else block
print(n)#print the parameter value
countup(n + 1)#Calling method countup
n = int(input("Enter an integer: ")) #defining n variable that inputs value
if n < 0:#defining if block that check n value less than 0
countup(n)#Calling countup method
else:#defining else block
countdown(n)#Calling countdown method
Output:
Please find the attached file.
Learn more:
brainly.com/question/16999822
#Java
What is the solution?
Answer:
I have answered the first part in another question of yours, but the second part is in the provided screenshot!
Explanation:
Steps to solve this problem:
Go through all the numbers from 1 -> n1, every time you go through each of these numbers, go through all the numbers from 1 -> n2. Multiply these numbers and add them to an output string. Print each line of output.
1. Write code that prints the square root of the value in the variable num rounded to 4 decimal places. Assume that num already has a value and that the math module has been imported.
Answer:
System.out.printf("The square root is %.4f\n",sqrt);
Explanation:
In Java programming language using the print format method of System.out One can specify the the number of decimal places. In this case to 4 decimal places.
See a complete code snippet below
public class num1 {
public static void main(String[] args) {
double num =5;
double sqrt = Math.sqrt(5);
System.out.printf("The square root is $%.4f\n",sqrt);
}
}
The speeding ticket fine policy in Podunksville is $50 plus $5 for each mph over the limit plus a penalty of $200 for any speed over 90 mph. Write a program that accepts a speed limit and a clocked speed and either prints a message indicating the speed was legal or prints the amount of the fine, if the speed is illegal.
Answer:
Check the explanation
Explanation:
here is the complete python code as per the requirement.
=========================================================
#ask to input speed limit
speed_limit = int(input("Enter the speed limit: "))
#if speed limit is less than 90
if speed_limit <=90:
print("Speed is legal.")
#else calculate the fine
else:
fine = 50 + 5 * (speed_limit - 90) + 200
#display the fine
print("fine amount is: $", fine, sep='')
=========================================================
Kindly check the code screenshot and code output in the attached images below.
Write a do-while loop that continues to prompt a user to enter a number less than 100, until the entered number is actually less than 100. End each prompt with newline Ex: For the user input 123, 395, 25, the expected output is:
Complete Question:
Write a do-while loop that continues to prompt a user to enter a number less than 100, until the entered number is actually less than 100. End each prompt with a newline. Ex: For the user input 123, 395, 25, the expected output is:
Enter a number (<100):
Enter a number (<100):
Enter a number (<100):
Your number < 100 is: 25
Answer:
import java.util.Scanner;
public class num8 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n;
do{
System.out.println("Enter a number (<100):");
n= in.nextInt();
}while(n>100);
System.out.println("Your number < 100 is: "+n);
}
}
Explanation:
Using Java programming language
Import the scanner class to receive user input
create an int variable (n) to hold the entered value
create a do while loop that continuously prompts the user to enter a number less than 100
the condition is while(n>100) It should continue the loop (prompting the user) until a number less than 100 is entered.
Answer:
do{
System.out.println("Enter a number (<100):");
userInput = scnr.nextInt();
} while(userInput > 100);
Explanation:
A network router connects multiple computers together and allows them to send messages to each other. If two or more computers send messages simultaneously, the messages "collide" and willl have to be resent. Using the combinational logic design process (explained in section 2.7, and summarized in Table 2.5), create a collision detection circuit for a router that connects 4 computers. The circuit has 4 inputs labeled M0 through M3 that are set to '1' when the corresponding computer is sending a message, and '0' otherwise. The circuit has one output labeled C that is set to '1' when a collision is detected, and to '0' otherwise. You do not have to draw the circuit, just select the most correct equation in the answer box.C = M0(M1+M2)+M1(M2+M3)+M1M2C = M0(M1+M2+M3)+M1(M2+M3)+M2M3C = M0M1+M1(M2+M3)+M3(M2+M0
Answer:
C = M0(M1+M2+M3)+M1(M2+M3)+M2M3 is the equation which suits
Explanation:
From the given data we can state that we need to activate only one product i.e 1------>activated 0-------->means inactivated and also only one slot is activated at a time.The resultant will be no data inputs n control bits and 2 to the power n output bits.
1. Give state diagrams of DFAs recognizing the following languages. The alphabet is {0, 1}. (a) {w | w is any string except 11 and 111} (b) {w | every odd position of w is a 1}
Answer:
Explanation:
The first diagram shows the DFA that accepts that accepts any string except 11 and 111
The second diagram shows every odd position of w is 1
3. Assume a disk drive from the late 1990s is configured as follows. The total storage is approximately 675MB divided among 15 surfaces. Each surface has 612 tracks; there are 144 sectors/track, 512 bytes/sector, and 8 sectors/cluster. The disk turns at 3600 rpm. The tract-to-track seek time is 20ms, and the average seek time is 80ms. Now assume that there is a 360KB file on the disk. On average, how long does it take to read all of the data in the file? Assume that the first track of the file is randomly placed on the disk, that the entire file lies on adjacent tracks, and that the file completely fills each track on which it is found. A seek must be performed each time the I/O head moves to a new track. Show your calculations
Answer:
total time to read whole file = ( 81.380208 mili seconds ) + 80ms + 80ms
Explanation:
Size of a surface = 675/15 = 45 MB
Size of a track = (Number of sectors per track)*(Size of a sector)
= (144*512)Bytes
= 73.728 KB
Number of tracks where 360KB file is located = 360/73.728 = 4.8828125 (Approx 5 tracks)
So Seek time to go the first track of the file = 80 ms
And after seek time for track to track movement = 4*20 = 80 ms
We need 4.8828125 rotations to read whole file.
Time for 4.8828125 ratations = (60.0/3600.0)*4.8828125 seconds = 0.081380208 seconds = 81.380208 mili seconds
So total time to read whole file = ( 81.380208 mili seconds ) + 80ms + 80ms
Give a recursive algorithm to compute the sum of the cubes of the first n positive integers. The input to the algorithm is a positive integer n. The output is ∑j=1nj3. The algorithm should be recursive, it should not compute the sum using a closed form expression or a loop.
Answer:
def sum_cubes(n):
if n == 1:
return 1
else:
return n * n * n + sum_cubes(n-1)
print(sum_cubes(3))
Explanation:
Create a function called sum_cubes that takes one parameter, n
If n is equal to 1, return 1. Otherwise, calculate the cube of n, and add it to the sum_cubes function with parameter n-1
If we want to calculate the cubes of the first 3 numbers:
sum_cubes(3) = 3*3*3 + sum_cubes(2)
sum_cubes(2) = 2*2*2 + sum_cubes(1)
sum_cubes(1) = 1
If you substitute the values from the bottom, you get 27+8+1 = 36
Recall the two FEC schemes for VoIP described in Section 7.3. Suppose the first scheme generates a redundant chunk for every four original chunks. Suppose the second scheme uses a low-bit rate encoding whose transmission rate is 25 percent of the transmission rate of the nominal stream
a. How much additional bandwidth does each scheme require? How much playback delay does each scheme add?
b. How do the two schemes perform if the first packet is lost in every group of five packets? Which scheme will have better audio quality?
c. How do the two schemes perform if the first packet is lost in every group of two packets? Which scheme will have better audio quality?
Answer:
The explanations for each of the parts of the question are given below.
Explanation:
a) FEC means Forward Correction Error
i) For the FEC First scheme:
The FEC first scheme generates a redundant chunk for every four original chunks.
The additional bandwidth required = 1/4 =0.25 I.e. 25%.
The playback delay is increased by 25% with 5 packets.
ii) For the FEC Second scheme:
The transmission rate of low-bit encoding = 25% of the nominal stream transmission rate.
Therefore, the additional bandwidth = 25%
The play back delay is increased by 25% with 2 packets.
b) In the second scheme, the loss of the first packet reflects in the redundant scheme immediately. The lost packet has a lower audio quality than the remaining packets
The first scheme has a higher audio quality than the second scheme.
c) If the first packet is lost in every group of two packets, most of the original packets in the first scheme will be lost causing a great reduction in the audio quality.
In the second scheme,the audio qualities in the two packets are not the same, the second packet will be received by the receiver if the first is lost, so no part of the audio stream is lost. This will still give an audio quality that is acceptable.
The second scheme will have better audio quality.
The function below takes a single string parameter: sentence. Complete the function to return a list of strings indicating which vowels (a, e, i, o, and u) are present in the provided sentence. The case of the vowels in the original sentence doesn't matter, but the should be lowercase when returned as part of the list. The order of the strings in the list doesn't matter. For example, if the provided sentence was 'All good people.', your code could return ['a', 'e', 'o']. It could also return ['e', 'o', 'a']. One way to implement this would be to use the filter pattern starting with the list of all vowels.
Answer:
import java.util.*;
public class num3 {
public static void main(String[] args) {
String sentence = "All good people";
System.out.println("The vowels in the sentence are ");
returnVowels(sentence);
}
public static void returnVowels(String word){
String newWord = word.toLowerCase();
String vowels ="";
for (int i = 0; i < newWord.length(); i++){
if(newWord.charAt(i)=='a'||newWord.charAt(i)=='e'||newWord.charAt(i)==i||
newWord.charAt(i)=='o'||newWord.charAt(i)=='u'){
vowels = vowels+newWord.charAt(i);
//System.out.print(newWord.charAt(i)+" ");
}
}
String [] chars = vowels.split("");
Set<String> uniqueVowels = new LinkedHashSet<>();
for (String s : chars) {
uniqueVowels.add(s);
}
System.out.println(uniqueVowels);
}
}
Explanation:
In Java
Create the method/function to receive a string as argument
Change the string to all small letters using the toLowerMethod
Iterate through the string using if statement identify the vowels and store in a new String
Since the sentence does not contain unique vowel characters, use the set collections in java to extract the unique vowels and print out
Write a C11 program that prompts the user to input the elapsed time for an event in seconds. The program then outputs the elapsed time in hours, minutes, and seconds. (For example, if the elapsed time is 9,630 seconds, then the output is 2:40:30.)
Final answer:
This C11 program prompts the user to input the elapsed time for an event in seconds and converts it into hours, minutes, and seconds. It uses integer division and remainder operations to calculate the time values and outputs them in the required format.
Explanation:
Here is a C11 program that prompts the user to input the elapsed time for an event in seconds and then outputs the elapsed time in hours, minutes, and seconds:
#include <stdio.h>
int main() {
int time, hours, minutes, seconds;
printf("Enter the elapsed time in seconds: ");
scanf("%d", &time);
hours = time / 3600; // 1 hour = 3600 seconds
time %= 3600; // Reduce the time to remaining seconds after subtracting hours
minutes = time / 60; // 1 minute = 60 seconds
time %= 60; // Reduce the time to remaining seconds after subtracting minutes
seconds = time; // Remaining seconds
printf("Elapsed time: %d:%02d:%02d", hours, minutes, seconds);
return 0;
}
In this program, we use integer variables to store the elapsed time in seconds, hours, minutes, and seconds.We prompt the user to enter the elapsed time in seconds using the printf and scanf functions. Then, we calculate the hours, minutes, and seconds by using integer division and remainder operations.
Finally, we output the elapsed time in the required format using the printf function with format specifiers.
Daniel owns a construction company that builds homes. To help his customers visualize the types of homes he can build for them, he designs five different models on the computer, using 3D printing to develop 3D paper models. What type of technology is Daniel using to develop these 3D models
Final answer:
Daniel is employing Computer-Aided Design (CAD) software and 3D printing to create 3D models for his construction company. This allows for detailed, precise visualizations and virtual tours of home designs, aiding clients in understanding the end product before building commences.
Explanation:
Daniel is using Computer-Aided Design (CAD) software coupled with 3D printing technology to develop the 3D models. CAD software allows users to create detailed, precise representations of products, buildings, and other projects, which then can be used to create physical models through 3D printing. This method is widely utilized in various industries, including construction, architecture, and product design to facilitate visualization and prototyping. The realistic representations and simulations provided by today's CAD programs help professionals like Daniel to effectively communicate design concepts to clients without the need for traditional physical mock-ups, enhancing the design process significantly.
Through this technology, Daniel can construct virtual tours offering exact views of the architectural designs. These models not only help in visualizing the structures but also in making more informed decisions on the design before any actual construction begins. Daniel's utilization of technology for creating 3-dimensional paper models demonstrates how contemporary architectural practices leverage digital tools to bring concepts to life for both the design teams and their clients.
The WorkOrders table contains a foreign key, ClientNum, which must match the primary key of the Client table. What type of update to the WorkOrders table would violate referential integrity? If deletes do not cascade, what type of update to the Client table would violate referential integrity? If deletes do cascade, what would happen when a client was deleted?
Answer:
Changing the customer number on a record in the Orders table to a number that does not match a customer number in the customer table would violate referential integrity.
If deletes do not cascade, deleting a customer that has orders would violate referential integrity.
If deletes cascade, customer can be deleted and all orders for that customer will automatically be deleted.
2. What is the name of the people who used to determine what news was fit to print or play?
A. Peacekeepers
B. Watchdogs
C. Gatekeepers
D. Producers
Answer:
C. GatekeepersExplanation:
Gatekeeper is a person who controls access to something or someone.Gatekeeping refers to efforts to maintain the quality of information published.Correct choice is C.
When does it make sense to compare the absolute values of numbers rather han
the numbers themselves?
Answer:
Explanation:
Absolute values of numbers are numbers greater than zero. They are always positive numbers. They are convenient and easy way of making sure a value is always positive. They are majorly used in inequalities to convert negative numbers to positive numbers.
Absolute values of numbers are important than the value itself when there is only need for a positive value in calculation rather than a negative. Absolute values also negates any negative values thereby converting them to positive values.
Absolute values are useful if we always want to keep our values as positive rather than negative.
Comparing absolute values is useful when considering distances, magnitudes, or amounts without the influence of negative signs. It helps in determining the direct distance between values and is essential in fields like statistics and measurement.
There are specific situations where it makes sense to compare the absolute values of numbers rather than the numbers themselves. One such instance is when dealing with distances or magnitudes.
For example, in determining how close two values are to each other on a number line, we would look at the absolute value of their difference, such as |x - y|, since this gives us the direct distance between them, ignoring whether they are positive or negative.
Another case is when measuring quantities that cannot be negative, such as lengths, distances, or quantities of objects.
Comparing the absolute values in such scenarios ensures we are considering the actual size or amount without the influence of the signs. Additionally, in statistics, working with absolute values can help in comparing variations about a mean value, which is often crucial in understanding data dispersion.
NOTE: Throughout this lab, every time a screenshot is requested, use your computer's screenshot tool, and paste each screenshot to the same Word document. Label each screenshot in accordance to the step in the lab. This document with all of the screenshots included should be uploaded through Connect as a Word or PDF document when you have reached the final step of the lab. In this lab, you will: 1. Identify questions related to the income statement. 2. Analyze a list of calculated financial ratios for a selection of companies. 3. Create a dynamic spreadsheet that pulls in XBRL data. 4. Create formulas to identify the companies based on the ratios. Refer to Chapter 8 pages 314 through 317 for instructions and steps for each of the lab parts. After completing Lab parts 1 through 4, complete the following requirements. Software needed Google Sheets (sheets.) iXBRLAnalyst script (https://findynamics/gsheets/ixbrlanalyst.gs) Data The data used in this analysis are XBRL-tagged data from Fortune 100 companies. The data are pulled from FinDynamics, which in turn pulls the data from the SEC.
Final answer:
The lab involves analysis of financial ratios, banking operations evaluation using T-account balance sheets, and quantitative modeling in biology, highlighting the importance of data analysis across disciplines.
Explanation:
The request refers to a step-by-step completion of a lab that involves interpreting financial data, specifically using an income statement to calculate various ratios for company analysis. The lab directs students to use specific data analysis tools and apply concepts such as the money multiplier and T-account balance sheets to evaluate banking operations. One part of the lab requires creating a spreadsheet to analyze data in terms of mass fractions relative to sodium, underlining the importance of quantitative modeling skills, even in biology.
Moreover, statistics play a role in the exercise, as students must calculate measures such as mean, standard deviation, median, and interquartile range. The lab encompasses a cross-disciplinary approach, including data analysis in biology and economics, showcasing how quantitative skills are leveraged in diverse fields.
Lastly, the lab also involves learning how to collect and interpret data, which includes skills like observation, sketching, using geography tools, and graphical interpretation. These fundamental skills are critical for successful data analysis in various academic and professional contexts.