C++ :: How To Square And Cube Number In Program

Feb 18, 2014

#include <iostream>
#include <conio.h>
#include <iostream>

[Code].....

I can't find a way to square and cube the number I want, which the number will show in the notepad. Is there a way to cube and square a number in my program??

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C :: Program To Find The Square Root Of A Number

Dec 5, 2013

I am writing a program to find the square root of a number. I am using the Newton-Raphson method..Just to clarify a bit of the code.. fabs(1/(x+1)) < 0.001 is to check for relative error..

EXAMPLE: for user entry of 100 if the iteration process ends in 10.055 the answer will return as 10 which is correct. But it isn't doing that.

It compiles I then proceed to run it..prompts me "Enter a number to find the square root of: I type 100 then hit enter...

"The square root of 100 is -1077834936"

My first time writing a program from complete scratch.

And I know there is a sqrt() function...just wanted to write my own.

Code:

#include <stdio.h>
#include <math.h>
double mysqrt(double a);
int main()
{
double a, result;
printf("Enter a number to find the square root of: ");

[Code]...

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C++ :: Newton Method Program For The Square Root Of A Number

Mar 1, 2013

I have been trying to write a Newton's Method program for the square root of a number and have been failing miserably...

#include <iostream>
#include <cmath>
using namespace std;
int main() {
double x1;
double y;
double x0;

[Code] .....

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C++ :: Square Root Of Number

Dec 9, 2013

i have written a function that gives me the square root of a number. Yes i know there is already a function in <cmath> that gives square roots but i thought it would be pretty challenging (and therefore fun) to try writing one on my own. I wrote my code while i was in school, listening to my Irish teacher ramble on and on about useless shit, so it's probably not the best possible way of finding the square root of a number.

double msqrt(double x) {
double adder=1;
double y = x;
for(int a=0; ; a++) {
if(y*y > x) y = y/2;
if(y*y <= x) break;

[code]....

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C :: Function Macro For Finding Square Root Of A Number

Jul 13, 2014

How to write a function macro in C for finding the sqrt of a number?

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C/C++ :: Displaying Filled Square Next To Hollow Square?

Feb 28, 2015

I am able to display a filled and hollow square by themselves, but I can't seem to be able to get them side by side.

So this is my code so far:

[/
#include <iostream>
using namespace std;
int main()

[Code]....

I can get the hollow square to show up, but the first square just shows up as a single line instead of a square. It seems that it ignores the first if statement in the second loop. I've tried not using an if statement in the second loop but it didn't seem to work either.

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C/C++ :: Make Program To Square Numbers From 1 To 20

Oct 21, 2012

I want to make program to square the numbers from 1 to 20. i have written this program, it's running but not giving the required answer.i think it is giving a garbage value...

void main(void)
{int a;
  int  b;
b=a*a;
for (a=1; a<21; a++)
{printf("%d",b);
printf("the square is%d=b");
}
getche();}

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C++ :: SFML And OGL That Should Display A Rotatable Cube

Nov 26, 2013

I wrote some Code with SFML c++ and OGL that should display a rotatable Cube ....... it doesnt .. WHY?

#include<SFML/OpenGL.hpp>
#include<SFML/Graphics.hpp>
#include<iostream>
void display();
void specialKeys();

[code]....

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C++ :: 3D Graphics Programming Using SDL - Draw A Cube?

Apr 24, 2014

Ive been experimenting with 3d graphics by using SDL only and lines to draw 3d shapes (no OpenGL or extension libraries, just pure math),

Ive used this page mainly to guide me on perspective projection but i have no luck [URL] ....

Ive been trying to draw a cube, but instead it gives me a mirrored dual triangular pyramids

This code here rotates the object as seen from the equations in this link: [URL] ....

double aX, aY, aZ;
for ( i = 0; i < model->qLength; i++ ) {
for ( j = 0; j < 4; j++ ) {
aX = model->quadArr[i].pointArr[j].x;
aY = model->quadArr[i].pointArr[j].y;
aZ = model->quadArr[i].pointArr[j].z;

[Code] .....

generally, i project it onto a 2d plane using: [URL] .....

double dx, dy, dz, dX, dY, dZ;
int bx, by, bX, bY;
for ( i = 0; i < model->qLength; i++ ) {
for ( j = 0; j < 4; j++ ) {

[Code] .....

I understand that my code is very messy and unoptimized, but im just concentrating on getting the core concepts to work with my code

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C++ :: How To Make A Simple 3D Cube With OpenGL

Nov 26, 2013

I am using SFML CodeBlocks and OpenGL i am not very good in OGL ...

i want 2 know how to make a simple 3d Cube with OGL ...

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C++ :: Program To Find Transpose Of Given Square Matrix

Mar 24, 2013

I want to find transpos of square matrix.but my program does not run complete.

Code:
#include<iostream>
using namespace std;
const int size=3;
void read(int a[size][size])

[Code] .....

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C++ :: Program That Will Ask User To Enter Area Of Square?

Feb 11, 2013

B. Circle in a Square Write a C++ program that will ask the user to enter the area of a square. Then the program will display the biggest area of a circle that will fit in a given square. Using math.h library is not allowed.

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C++ :: Write Program To Find Area Of A Square

Feb 1, 2013

write a C++ program to find the area of a square, input the length of the side, and output your answer to the screen.

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C++ :: Draw A Square Within A Square Pattern

Oct 25, 2013

I know how to draw a square hollow or filled but i need to draw an alternating pattern ....

ex
iPatternHeight = 1
X

iPatternHeight = 3
OOO
OXO
OOO

[Code] .....

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C :: How To Define Epsilon In Newton Raphson Square Root Program

Mar 6, 2015

I'm working on a c program that generates approximations of square roots based on newton raphson method. I worked out the approximations with another method I learnt and I know this program does fine. But I don't get the concept of epsilon. Below is the code for the program

Code:

#include<stdio.h>
// function to compute absolute value
float absoluteValue(float x)
{
if(x < 0)
x = -x;

[code]....

The text I worked this code from uses the epsilon value arbitrarily. how is the epsilon value selected? I tried using this formula to derive the square root of 45. On paper I can go as far as 6.8 something. But once this value is reached it's still bigger than epsilon, so shouldn't the code keep running? The program generates 1.41 for 2, but since it could go further why does the while loop in squareRoot function terminate?

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C++ :: User Defined Program - Compute Price Per Square Inch Of Cake Using Overloading

Nov 21, 2014

Create a user-defined program that will compute the price per square inch of a cake using an “overloading”. The cake could be a circle or a square type. In the main function, ask for the price of a circle cake and its diameter, while for the square cake, ask for the price, its length and width. The process must be done inside the different function of each cake. (Note: two sub function for the computation of a circle and a rectangle)

Note that when I made this program something weird happen. After inserting the name, all things follow.

<code>
#include "stdafx.h"
#include <iostream>
using namespace std;
double areaRectangle(int l, int w);
double radiusCircle(int r);

[Cpde] .....

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C# :: How To Draw A Square Within A Square

Oct 25, 2013

I know how to draw a square hollow or filled but I need to draw an alternating pattern

ex
iPatternHeight = 1
X

iPatternHeight = 3
OOO
OXO
OOO

[Code] ......

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Visual C++ :: Program That Count From 1 To 12 And Print Count And Its Square For Each Count

Dec 16, 2014

4.1 Write a program that will count from 1 to 12 and print the count, and its square, for each count.

4.2 Write a program that counts from 1 to 12 and prints the count and its inversion to 5 decimal places for each count. This will require a floating point number.

4.3 Write a program that will count from 1 to 100 and print only those values between 32 and 39, one to a line. Use the incrementing operator for this program.

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C :: Program That Allow User To Enter A Number N And Print Nth Prime Number

Nov 3, 2013

I need to write a program that will allow the user to enter a number "n" and the program tell you that the nth prime number is .....

EXAMPLE

user enters 55

printf("The 55th prime number is %i", variable");

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C/C++ :: Program To Find Number Of Digits In Number?

Aug 20, 2014

In the c pgm to find number of digits , if I am giving 001 as the input number ,why I am not getting the no. of digits as 3?

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C/C++ :: Can't Get The Right Square Pattern

Jul 4, 2014

I've been working on this code that should be looking like

1 3 5 3 1
3 5 7 5 3
5 7 9 7 5
3 5 7 5 3
1 3 5 3 1

but mine appears like this

1 3 5 3 1
3 5 7 5 3
5 7 9 7 5
3 3 5 7 9
1 3 1 3 5

This is the code I've got for now, I just don't know which logic I need to fix

int main(){
int r;
cout << "Rows?" << endl;
cin >> r;
for (int i = 1; i <= r; i+=2){
for (int j = i; j <= r+i; j+=2){
cout << j<< " ";
} for (int k = i+2; k >= i-1; k-=2){

[code]....

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C++ :: How To Move Square To The Left

Apr 20, 2013

Having trouble getting my square to move to the left my code and instructions of what i am suppose to do is below. No sure how to move my square or if I am even going in the right direction as to writing code to do so. Note that it is only part of my code ( part 2 of project)

Part 2:

Write a graphical application that draws a square and then moves it.

Get the x and y coordinates for the top left corner of the square from the user using the get_int() member function of cwin. Get the length of a side of the square from the user using get_int() as well. Now draw the square to cwin according to the user input.Ask the user how many units to the left they want to move it using get_int() again. Then move the square, clear the screen, and draw it again.

// Part 2 //
/* command output to declare the x,y value and 1 side length of a square through user interaction( Has user input intergers) */
int x_value = cwin.get_int("What is the x_value of the top left of the square?");
int y_value = cwin.get_int("What is the y_value of the top left of the square?");
int side_length = cwin.get_int("Input the length for one side of the square:");
/* Data type for the 4 corners of the square */
Point e;
Point f;

[Code]...

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C# :: Creating A Magic Square

Feb 5, 2015

My university assignment requires us to create a magic square. The definition of which can be found on Wikipedia and such, but essentially it's a (n) times (n) grid where all the row, column and diagonal totals meet the formula [n(n2 + 1)]/2. So a 3x3 would provide totals of 15 for example.

It's been requested that we use brute force for this, nothing mathematically fancy. I've succeeded in the task and initially during testing was coming up with a result of a 3x3 magic square after between 10 million and 1 billion attempts over a few minutes to nearly an hour.

I proceeded to refine my code and have as little as possible in the while loop which I'd break out of once the function had found a magic square, nothing really made much difference until I moved the declaration of my random to just before my while loop instead of within.

Random RanGenerator = new Random();

Once I'd done this I was getting 3x3 magic squares after a few thousand iterations in less than a second, which has completely baffled me. I can understand if it would save time, but how could that reduce the amount of attempts required to solve the magic square?

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C++ :: MFC Drawing Circle Instead Of Square

Mar 11, 2014

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)

[Code] ....

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C :: Drawing A Shape (Square) Into PGM Image

Nov 22, 2013

I'm doing a project and I need to draw a square into a pgm image if certain conditions are met, but I'm not sure how to draw the square into the image.

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C :: How To Reflect A Square Matrix Diagonally

Jun 10, 2013

I have progressed to a point but I don't know what have I done wrong.

Code:

#include <stdio.h>#include <conio.h>
int main () {
int i, j, n, temp;

[Code].....

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