Exercise 3.9 Modify program P34_1.cpp to compute the side area, total area, and volume of a cylinder and the area and volume of a sphere, depending on the choice that the user makes. Your program should ask users to enter 1 to choose cylinder or 2 for sphere, and display an "invalid choice error" for other values. For a cylinder, we want to compute: Side area: (2*PI*r) * h Total Area: 2*(PI*r2) + Side area Volume: (PI*r2)*h For a sphere, we want to compute: Surface area: 4*PI*r2 Volume: (4.0/3.0)*PI*r3. Use overloading whenever possible. Call your new program Ex39.c

Exercise 3.9 Modify program P34_1.cpp to compute the side area, total area, and volume of a cylinder and the area and volume of a sphere, depending on the choice that the user makes. Your program should ask users to enter 1 to choose cylinder or 2 for sphere, and display an "invalid choice error" for other values. For a cylinder, we want to compute: Side area: (2PIr) * h Total Area: 2(PIr2) + Side area Volume: (PIr2)h For a sphere, we want to compute: Surface area: 4PIr2 Volume: (4.0/3.0)PIr3. Use overloading whenever possible. Call your new program Ex39.c

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 21PE

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Modify program P34_1.cpp to compute the side area, of a cylinder and the area and volume of a sphere, depending on the choice that the user makes. total area, and volume Your program should ask users to enter 1 to choose cylinder or 2 for sphere, and display an "invalid choice error" for other values. For a cylinder, we want to compute: Side area: (2*PI*r) h Total Area: 2*(PI*r2) + Side area Volume: (PI*r2)*h For a sphere, we want to compute: Surface area: 4 *PI*r2 Volume: (4.0/3.0)*PI*r3. Use overloading whenever possible.
A pentagonal number is defined as for and so on. So, the first few numbers are 1, 5, 12, 22, .... Write a function with the following header that returns a pentagonal number:def getPentagonalNumber(n):Write a test program that uses this function to display the first 100 pentagonal numbers with 10 numbers on each line.
Need help in python. Problem: 2D random walk. A two dimensional random walk simulates the behavior of a particle moving in a grid of points. At each step, the random walker moves north, south, east, or west with probability 1/4, independently of previous moves. Compose a program that takes a command-line argument n and estimates how long it will take a random walker to hit the boundary of a 2n+1-by-2n+1 square centered at the starting point. //Given codeImport stdioImport randomImport sysn = int(sys.argv[1])//write code herestdio.write('The walker took ')stdio.write(c)stdio.writeln(' steps')
Modify the above program to compute the side area, total area, and volume of a cylinder and the area and volume of a sphere, depending on the choice that the user makes. Your program should ask users to enter 1 to choose cylinder or 2 for sphere, and display an "invalid choice error" for other values. For a cylinder, we want to compute: Side area: (2*PI*r) * h Total Area: 2*(PI*r2) + Side area Volume: (PI*r2)*h For a sphere, we want to compute: Surface area: 4*PI*r2 Volume: (4.0/3.0)*PI*r3. Use overloading whenever possible. Provide comments for any functions that are overloaded and explain why they could be overloaded the program should be written in c++
Modify the above program to compute the side area, total area, and volume of a cylinder and the area and volume of a sphere, depending on the choice that the user makes. Your program should ask users to enter 1 to choose cylinder or 2 for sphere, and display an "invalid choice error" for other values. For a cylinder, we want to compute: Side area: (2*PI*r) * h Total Area: 2*(PI*r2) + Side area Volume: (PI*r2)*h For a sphere, we want to compute: Surface area: 4*PI*r2 Volume: (4.0/3.0)*PI*r3. Use overloading whenever possible. Provide comments for any functions that are overloaded and explain why they could be overloaded
Define function print_popcorn_time() with parameter bag_ounces. If bag_ounces is less than 3, print "Too small". If greater than 10, print "Too large". Otherwise, compute and print 6 * bag_ounces followed by "seconds". End with a newline. Remember that print() automatically adds a newline.Sample output with input: 742 seconds ''' Your solution goes here ''' user_ounces = int(input())print_popcorn_time(user_ounces)
Write a fraction calculator program. Your program should check for the division by 0, have and use the following functions: abs - returns the absolute value of a given integer. min - returns the smallest of two positive integers. gcd - returns the greatest common divisor of two positive integers. reduce - reduces a given fraction. flip - reduces a given fraction and flips the sign if the denominator is negative. the program should run repeatedly until the user wants to quit.
(Learning Objective: students will be able to apply their knowledge of the built-in random package to generate simulations of simple phenomena.) Write a function: • dicesim(D1,D2,trials) that takes as input the number of sides on die 1 (D1) and die2 (D2) and the number of trials. Your function should repeatedly sum pairs of random numbers between 1 and D1 and 1 and D2 and keep track of how many times each sum occurs. The function returns a numpy array with the fraction each sum of rolls occured. Since the numbers are chosen at random, the fractions will differ some from run to run. One run of the function print(p22.dicesim(6,6,10000)) resulted in: [0. 0. 0.0259 0.0615 0.0791 0.1086 0.139 0.1633 0.1385 0.114 0.0833 0.0587 0.0281] or displayed using the code from Section 16.1.1.: PMF of X Note: you should submit a file with only the standard comments at the top and the function. The grading scripts will then import the file for testing.
Exercise III: Catalan numbers For n e N, denote by c, to be the number of ways to form a "mountain range" with n upstrokes (U) and n downstrokes (D) that all stay above a horizontal line. For instance: for n = 1, only UD is allowed, so c = 1; • for n = 2, only UUDD and UDUD are allowed, so c2 = 2. 1. Check that c3 = 5 by writing down or drawing all possible options. 2. Consider the power series +00 g(x) = 2 n=0 (by definition co = 1) called the generating function of the sequence (en). Justify that cn < 4" for each n, and deduce that the radius of convergence of g is at least 1/4. 3. It can be show that for r E (-1/4, 1/4), g(x) = 1+ xg(r)? and therefore 1- VI 4.x g(x) = 2.x Use this formula and the known power series of V1+ x to write the first terms of the power series expansion of g, in the form g(x) = co + c1x + c2x2 + C3x + c4x* + ·.. Show how you obtain a few terms, but you do not need to show all computations and you can use a calculator for fractions. Check that you recover co,…
Problem 7: Guess the price of the car!? You will implement a variant of the number guessing game we played in lecture. In this variant, you will ask the user to guess the price of a $42,500 car. Let's assume that the player knows the price of the car is rounded to the nearest $500. If a player's guess is not exactly correct, your program will tell them they are either too high or too low. The player will get as many guesses as they need to guess the price of the $42,500 car. However they will only win the game if they used 5 or fewer guesses. Here are two examples of how the program should work for both cases: Guess the price and win the prize! Enter your guess:50000 Too high! Enter your guess:40000 Too low! Enter your guess:45000 Too high! Enter your guess:42500 You won the car! Guess the price and win the prize! Enter your guess:46000 Too high! Enter your guess:45000 Too high! Enter your guess:44000 Too high! Enter your guess:43000 Too high! Enter your guess:42000 Too low! Enter your…
Problem 2: Postman Harry Harry is a postman. He's got a post office with a size of n rows and m columns. Each slot at the post office contains a number of letters. Harry can only go right and down. He starts at (0, 0), and ends at (n-1, m-1). Write a program that calculates the maximum amount of letters Harry can pick up. He can only pick up letters from a slot if he is on that slot. If the amount of letters is the same down and right, go right. Sample input/output: Enter the number of rows and columns: 35 Enter the number of letters in the 5 slots of row number 1: 5 2 60 1 Enter the number of letters in the 5 slots of row number 2: 2 4 3 9 2 Enter the number of letters in the 5 slots of row number 3: 8 72 3 4 The maximum number of letters Harry can pick is 32 solve using c++; (chapter 9: Variables / Assignments)
Description A mathmatician Goldbach's conjecture: any even number(larger than 2) can divide into two prime number’s sum.But some even numbers can divide into many pairs of two prime numbers’ sum. Example:10 =3+7, 10=5+5, 10 can divide into two pairs of two prime number. Input Input consist a positive even number n(4<=n<=32766). Output Print the value of how many pairs are this even number can be divided into. Sample Input 1 1234 Sample Output 1 25