Determine the distance between point (x1, y1) and point (x2, y2), and assign the result to pointsDistance. The calculation is: Distance = (x2 − x1)² + (y2 — y1)² Ex: For points (1.0, 2.0) and (1.0, 5.0), points Distance is 3.0. 1 #include 2 #include 3 4 int main(void) { 5 6 7 8 9 10 11 12 13 HASARGREN 14 15 16 18 19 21 17 scanf("%lf", &x1); scanf("%lf", &y1); scanf("%f" &x2). 20 scanf("%lf", &y2); 22 23 double x1; double y1; double x2; 24 25 26 double y2; double xDist; double yDist; double pointsDistance; xDist = 0.0; yDist = 0.0; pointsDistance = 0.0; *Your solution goes here */ printf("%1f\n", pointsDistance); return 0;

Determine the distance between point (x1, y1) and point (x2, y2), and assign the result to pointsDistance. The calculation is: Distance = (x2 − x1)² + (y2 — y1)² Ex: For points (1.0, 2.0) and (1.0, 5.0), points Distance is 3.0. 1 #include 2 #include 3 4 int main(void) { 5 6 7 8 9 10 11 12 13 HASARGREN 14 15 16 18 19 21 17 scanf("%lf", &x1); scanf("%lf", &y1); scanf("%f" &x2). 20 scanf("%lf", &y2); 22 23 double x1; double y1; double x2; 24 25 26 double y2; double xDist; double yDist; double pointsDistance; xDist = 0.0; yDist = 0.0; pointsDistance = 0.0; Your solution goes here / printf("%1f\n", pointsDistance); return 0;

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter8: Arrays And Strings

Section: Chapter Questions

Problem 10PE

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When you borrow money to buy a house, a car, or for some other purpose, you repay the loan by making periodic payments over a certain period of time. Of course, the lending company will charge interest on the loan. Every periodic payment consists of the interest on the loan and the payment toward the principal amount. To be specific, suppose that you borrow $1,000 at an interest rate of 7.2% per year and the payments are monthly. Suppose that your monthly payment is $25. Now, the interest is 7.2% per year and the payments are monthly, so the interest rate per month is 7.2/12 = 0.6%. The first months interest on $1,000 is 1000 0.006 = 6. Because the payment is $25 and the interest for the first month is $6, the payment toward the principal amount is 25 6 = 19. This means after making the first payment, the loan amount is 1,000 19 = 981. For the second payment, the interest is calculated on $981. So the interest for the second month is 981 0.006 = 5.886, that is, approximately $5.89. This implies that the payment toward the principal is 25 5.89 = 19.11 and the remaining balance after the second payment is 981 19.11 = 961.89. This process is repeated until the loan is paid. Write a program that accepts as input the loan amount, the interest rate per year, and the monthly payment. (Enter the interest rate as a percentage. For example, if the interest rate is 7.2% per year, then enter 7.2.) The program then outputs the number of months it would take to repay the loan. (Note that if the monthly payment is less than the first months interest, then after each payment, the loan amount will increase. In this case, the program must warn the borrower that the monthly payment is too low, and with this monthly payment, the loan amount could not be repaid.)
Programming Exercise 10 in Chapter 6 asks you find the mean and standard deviation of five numbers. Extend this programming exercise to find the mean and standard deviation of up to 100 numbers. Suppose that the mean (average) of n numbers x1, x2, . . ., xn is x. Then the standard deviation of these numbers is:S=sqrt(((x1-x)^2+(x2-x)^2+...+(xi-x)^2+...+(xn-x)^2)/n)
When you borrow money to buy a house, a car, or for some other purposes, then you typically repay it by making periodic payments. Suppose that the loan amount is L, r is the interest rate per year, m is the number of payments in a year, and the loan is for t years. Suppose that i = (r / m) and r is in decimal. Then the periodic payment is: You can also calculate the unpaid loan balance after making certain payments. For example, the unpaid balance after making k payments is: where R is the periodic payment. (Note that if the payments are monthly, then m = 12.) Instructions Write a program that prompts the user to input the values of L, r, m, t, and k. The program then outputs the appropriate values. Your program must contain at least two functions, with appropriate parameters, to calculate the periodic payments and the unpaid balance after certain payments. Make the program menu driven and use a loop so that the user can repeat the program for different values. Example of…
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Knight's Tour: The Knight's Tour is a mathematical problem involving a knight on a chessboard. The knight is placed on the empty board and, moving according to the rules of chess, must visit each square exactly once. There are several billion solutions to the problem, of which about 122,000,000 have the knight finishing on the same square on which it begins. When this occurs the tour is said to be closed. Your assignment is to write a program that gives a solution to the Knight's Tour problem recursively. You must hand in a solution in C++ AND Java. The name of the C++ file should be "main.cc" and the name of the Java file should be "Main.java". Write C++ only with a file name of main.cc Please run in IDE and check to ensure that there are no errors occuring Output should look similar to: 1 34 3 18 49 32 13 16 4 19 56 33 14 17 50 31 57 2 35 48 55 52 15 12 20 5 60 53 36 47 30 51 41 58 37 46 61 54 11 26 6 21 42 59 38 27 64 29 43 40 23 8 45 62 25 10 22 7 44 39 24 9 28 63
Question 4 Encapsulation is implemented by using__________ variable.
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