I was given an assignment for class to calculate the area of a circle using only the radius as a user input and not using Pi in the code. I need to do this by calculating the areas of a series of rectangles under the curve and adding them together. Using nested loops to continuously reduce the size of these rectangles until the approximated area value is within a margin of error less than 0.1%.
Code:
#include<iostream>
#include<cmath>
using namespace std;
int main ()
#ifndef CIRCLE_H #define CIRCLE_H class Circle { public: //constructors Circle(); Circle(double r);
[code]....
The function isBigger() returns true (or false) if the radius of the Circle instance on which the function is invoked is bigger (or smaller) than the radius of the Circle instance passed to the function.: How to implement this function?
#include <iostream> #include <cmath> using namespace std;
//prototypes for all separate functions int chooseFunc(int); int chooseMethod(int); int numRect(int);
[Code] .....
It seems that my program will ask the user for the number of rectangles and trapezoids but will fail to compute the area under the curve from the user input. Therefore, I believe I have a logical error somewhere or I'm forgetting to call something somewhere.
Write a program that prompts the user to input the length of a rectangle and the width of a rectangle and then displays the rectangle's area and perimeter. The program should be broken down in 3 parts:
1. Input the length and the width (two input statements)
2. Calculate the area & perimeter (results should be saved in variables
3. print results.
Format the output so the user can easily read the results. Use the tab escape so its easy to read. --------------------------------------------------------------- So here's what I have so far. I have been stuck for two days
#include iostream using namespace std; int main () { int double length; int width; int area; int perimeter;
[Code] ....
I dont want to get a zero for not turning this in...
I am writing a program to calculate a rectangle's area.
Eg. Enter top left point: 1 1 (User input) Enter bottom right point: 2 -1 (User input) Top Left x = 1.000000 y: 1.000000 Bottom Right x = 2.000000 y: -1.000000 Area = 2.000000 (Program output)
It keeps on prompting me my variable r is being used without being initialized, when I think I already did so.
So for my assignment, I have to write code to calculate the surface area and volume for a rectangular prism that involves the use of functions. I made the program without functions and it works perfectly but as I'm putting in the required functions, it conversely made it non-functional, ironically. How to call functions correctly and the online book we're using now is confusing me even more.
****************************************************************** CSCI 240 Program 5 Part 2 Spring 2013
Programmer: Section: 1 Date Due: 3/1/13
Purpose: This program uses functions to calculate the surface area of various shapes. It is an exercise in learning to write functions. ******************************************************************/
#include <iostream> #include <iomanip> using namespace std; #define PI 3.14 //Symbolic constant for the value of PI
int Menu(); int getValue( string prompt, int lowerBound, int upperBound );
You are writing a program to calculate the area for 500 different measurements for a playground company in the region. The company must calculate square footage of each prospective playground, as well as the total cost to mulch each area. The cost of mulch changes frequently, so the company would like to be able to input the current cost per square foot of mulch each time they run the program. Since the quantity of data is large, the input should come from a file called “measurements.txt”. You can assume the file includes the length of each prospective playground, followed by the width. The file will be in the following format.
450300 120210 . . .
Ask the user the name of the file they would like to write to, as well as the current price of mulch per square foot. Output the area of each playground, along with the total price of mulch to the file that the user specifies. The playground company would like each column of output to be 20 characters in width. Each column should have an appropriate heading in the output file. You should format your output data appropriately. For example, for the input data displayed above, along with a $2.00 per square foot mulch price, the output would be:
Area Total Mulch Price 135000 $270000.00 25200 $50400.00
How would this look like in C? Develop an application to calculate the area and perimeter of geometric shapes. First the user is asked to enter a letter representing the shape. We use C for circle, R for rectangle and S for square. After the user chooses the shape, the program prompts for the appropriate dimensions of the shape accordingly.
For instance, if the user has chosen a square, the program will ask for a side. If it's a circle, the program will ask for radius. If it's a rectangle, it will ask for length and width. Upon receiving the appropriate dimensions, the program will calculate the area and the perimeter of the requested shape and print it on the screen. And again, the code will ask for another letter. If the user enters 'Q' the program terminates.
Please Enter Shape (C: Circle, S: Square, R: Rectangle Q:quit) >S Please enter the side of the square > 8 The area is 64 and the perimeter is 32 Please Enter Shape (C: Circle, S: Square, R: Rectangle Q:quit) >R Please enter the width of the rectangle > 5 Please enter the length of the rectangle > 7 The area is 35 and the perimeter is 24 Please Enter Shape (C: Circle, S: Square, R: Rectangle Q:quit) >Q
I'm supposed to print a small rectangle inside concentric circles that are inscribed in a rectangle.I'm not really sure where to start with printing a circle in a ppm file.
Found a good beginner's tutorial to learn Visual C++: [URL] ....
How to change the drawing so that instead of squares, the game draws circles. Can figure out that using Ellipse in the code results in circle outlines, but the fill remains as square color shapes.
The drawing code from the tutorial is below. How to substitute filled circles for filled squares.
Code:
// CSameGameView drawing void CSameGameView::OnDraw(CDC* pDC){ // First get a pointer to the document CSameGameDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if(!pDoc)
Im supposed to create an to array of eight Circle objects initialized with the following radii: 2.5, 4.0, 1.0, 3.0, 6.0, 5.5, 3.5, 2.0. Then use a bubble sort to arrange the objects in ascending order of radius size before displaying the area of each object.
The error I get is "Cannot open include file: 'Circle.h': No such file or directory". Do I have to create a separate file for it?
#include <iostream> #include <iomanip> #include "Circle.h" using namespace std; class Circle { public: Circle()
I installed FLTK 1.3.X (from here [URL] ...) on my visual studio 2012 compiler and use PPP book for programming (this: [URL] ..... ). My problem is about filling a Shape in. For example , this code:
#include <Simple_window.h> using namespace Graph_lib; int main() { Simple_window win(Point(100,100), 1000, 600, "Binary_tree"); Graph_lib::Circle c(Point(200,200),50); c.set_color(Color::red);
[Code] ....
When I run the program, All three Shapes are drawn but only the Rectangle is filled in! Why?
set_color works for the three and apparently the set_fill_color is defined for all Shapes and it too should work but why it doesn't work for Circle and Ellipse?
I'm trying to create a PPM image for a class assignment. A black rectangle with a circle at the point 225, 175 with a radius of 75. I have to use certain specific methods, so I can't use like Bresenham's really famous method for creating a circle.
The problem is that it compiles fine, and transfers to an image fine, but always says that I have a negative or zero image size.
I am working on a computer program where I need to generate points on a circle. I am familiar with this kind of algorithm:
for(d=0; d<=2*pi; d+=0.01) { x = cos(d)*radius; y = sin(d)*radius; }
However, due to the specifics of the program I am writing, I need to iterate through a fixed number of points one at a time, like so:
for ( int x = 0; x < blockSize; x++ ) { y = ??? }
This essentially "fixes" one axis of the circle, since I can't do: x=rx+sin(d)*r.
I have tried simply: "y = sin(d)*radius;" and I get a curved shape, but it's not a circle.
My question then is, how do I get the value of y in this situation, where the x axis is incrementing by 1 through a range of values? Is it mathematically possible?
My problem is the following : We have a circle paper of radius R. We will cut off a sector of this circle (with length rem_sec), and the remaining (bigger part) will create a cone. Radius of cone base is r.
I need to create a code that prompts the user to enter circle's radius R and the program will calculate the length of removed sector (rem_sec) so that the created cone has the Max Volume.
I wrote the following code, but it doesn't work. It displays both rem_sec and MaxV = 0.
#include <iostream> #include <cmath> #include <iomanip> #include <conio.h> using namespace std; const double PI = 3.1415; int main() { double rem_sec;
Let (x,y) be the center of the circle. (x,y) will not be (0,0). I have radius of the circle. Now i want to find the angle and radius of the given point inside the circle.
Im supposed to create an array of eight Circle objects initialized with the radii which is in the program. Also I must use bubble sort to arrange the objects is ascending order.
ERRORS: 'initializing' : cannot convert from 'double' to 'Circle' 'setRadius' : is not a member of 'Circle' see declaration of 'Circle' 'findArea' : is not a member of 'Circle' see declaration of 'Circle
#include "stdafx.h" #include <iostream> #include <iomanip> using namespace std; class Circle {
