Signals can be transmitted in one of two ways. list and explain both
1 answer:
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Answer:
Here is the calcPrice.c program:
#include <stdio.h> //to use input output functions
int main(void) { //start of main method
int itemNo, month, day, year, quantity; //declares variables to hold item number, quantity, and date
float unitPrice; //declare variable to hold price per unit
printf("Enter item number: "); // prompts user to enter item number
scanf("%d", &itemNo); //reads item number from user and stores it in itemNo variable
printf("Enter unit price: "); // prompts user to enter unit price
scanf("%f", &unitPrice); //reads input unit price and stores it in unitPrice variable
printf("Enter quantity: "); //prompts user to enter quantity
scanf("%d", &quantity); //reads input quantity and stores it in quantity variable
printf("Enter purchase date (mm/dd/yyyy): "); //prompts user to enter purchase date
scanf("%d/%d/%d", &month, &day, &year); //reads input date and stores it in month, day and year variables
float totalAmount = unitPrice * quantity; //computes the total amount
printf("\nItem\tUnit Price\tQTY\tPurchase Date\tTotal Amount\n"); //displays the item, unit price, qty, purchase data and total amount with tab space between each
printf("%d\t$%5.2f\t%d\t%.2d/%.2d/%d\t$%5.2f\n", itemNo, unitPrice,quantity, month, day, year,totalAmount); } //displays the values of itemNo, unitPrice, quantity, month, day, year and computed totalAmount with tab space between each
Explanation:
Lets suppose user enters 583 as item number, 13.5 as unit price, 2 as quantity and 09/15/2016 as date so
itemNo = 583
unitPrice = 13.5
quantity = 2
month = 09
day = 15
year = 2016
totalAmount is computed as:
totalAmount = unitPrice * quantity;
totalAmount = 13.5* 2
totalAmount = 27.00
Hence the output of the entire program is:
Item Unit Price QTY Purchase Date Total Amount
583 $ 13.50 2 09/15/2016 $ 27.00
The screenshot of the program along with its output is attached.
Answer:
Here is the C++ program:
#include <iostream> // to use input output functions
using namespace std; // to identify objects like cin cout
int main() { //start of main function
int number; //an integer value
cout<<"Enter an integer: "; //prompts user to enter a number
cin >> number; // reads integer value from user
if (number > 98 || number < 20) { //if number is not between 20 and 98
cout<<"Input must be 20-98"; } //display this message if number is not between 20 and 98
else { // if number is in range 20-98
while(number%11){ // loop keeps taking mod of input number with 11 until matching digits found
cout<<number<<" "; //displays the numbers
number--; } // decrements the value of number by 1
cout<<number<<" "; } } // displays the matching digits
Explanation:
I will explain the program with an example:
Let suppose the number = 90
The if condition evaluate to false because 90 is in the range of 20-98 so the else part executes which has a while loop that works as following:
while(number % 11)
At first iteration:
This while(number % 11) is basically equivalent to :
while(number % 11 != 0)
while(90 % 11)
The % operator is the modulo operator which returns the remainder of the division. So when 90 is divided by 11 the remainder is 2. This is not equal to 0. So the statement under while condition executes:
cout<<number<<" "; This statement displays the number on output screen. Since number = 90 so 90 is printed. " " adds a space with the number
90
Next the value of number is decremented to 1 so number = 89
At second iteration:
while(number % 11) becomes:
while(89 % 11)
When 89 is divided by 11 the remainder is 1. This is not equal to 0. So the statement under while condition executes:
cout<<number<<" "; This statement displays the number on output screen. Since number = 89 so 89 is printed. " " adds a space with the number
90 89
Next the value of number is decremented to 1 so number = 88
At third iteration:
while(number % 11) becomes:
while(88 % 11)
When 89 is divided by 11 the remainder is 0. So the while loop breaks because the condition while(number % 11 != 0) evaluates to false. So the statement in while loop does not execute and program control moves to the following statement:
cout<<number<<" "; This statement displays that number whose digits match on the output screen with a space. So the output of the entire program is:
90 89 88
The program along with the output using example given in the question i.e. input is 93 is attached in a screenshot.
