C/C++ :: How To Find Multiplication From 1 To 20 By Adding Not Multiplying
Sep 11, 2014I have code the following but result is not ok.
int main()
{
int i,j,m;
m = 0;
[Code].....
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C++ :: Adding And Multiplying Polynomials - Linked List And Operation Overloading
Mar 3, 2013I am having a bit of difficulty with implementing an object oriented program that uses both linked lists and operator overloading. The program calls for adding and multiplying polynomials together, with each single polynomial being represented as a node of a linked list (which is further a data member of an object of a class I have defined to implement this program). For example:
polynomial A will be: 3x^4 // 1 node of a linked list
polynomial B will be: 5x^2 // 1 node of a linked list
polynomial C will be blank for the time being. // empty list
Now, I need to use operator overloading so that this following line of code can be implemented:
C = A + B;
C should now be: 3x^4 + 5x^2.
The checklist of which parts of my code that work:
constructor works;
copy constructor works;
destructor works;
operator= works;
print function needs work but i can worry about that later;
operator* work on later
Here is my code:
#include <iostream>
using namespace std;
struct termNode {
int exp; // exponent
int coef; // coefficient
termNode * next;
[Code] ....
For the time being I need to add multiple nodes together (with the result being in descending order). So for example:
polyType a(2,3), b(4,5), c(6,7), d;
d = a + b + c;
d.print(); // should print out 7x^6 + 5x^4 + 3x^2, but it will only print out: 3x^2 + 7x^6
C++ :: Find Voltage By Multiplying Resistance And Current Array By Using Function And Pointers
Nov 11, 2013I am suppose to find voltage by multiplying a resistance array and a current array by using a function and pointers. This is what I have so far:
#include "stdafx.h"
#include <iostream>
using namespace std;
#include <iomanip>
[Code] ....
C/C++ :: Enter Integer And Find Multiplication Table
Oct 19, 2014This program to find the multiplication table, need explanation this step : printf("%d * %d =%d ", n, i, n*i);
#include <stdio.h>
int main() {
int n, i;
printf("Enter an integer to find multiplication table: ");
scanf("%d",&n);
for(i=1;i<=10;++i) {
printf("%d * %d =%d ", n, i, n*i);
} return 0;
C++ :: Specifying And Multiplying Two Variables
Feb 23, 2014I'm very new to C++ so I've been trying to run through some code examples to begin to learn basic structures and syntax, but I've recently run into a problem using examples from the 7th ed. of Sams Teach Yourself C++. I'm using the code provided within one of the examples that allows you to specify and multiply two variables, but when I compile and run the executable the final output seems to only show the first variable and b/c of this the multiplication operation does not work.
Here is a my example code:
Code:
#include <iostream>
using namespace std;
int main() {
cout << "This program will multiply two numbers" << endl;
[Code] ....
C++ :: Multiplying Array By 10?
Apr 19, 2014#include <iostream>
#include <cstdlib>
using namespace std;
[Code]....
I am trying to initialize int x[] = {10, 100, 1000, 10000} into a loop and give me four different numbers for something. I was trying to get creative and just do
myArr[j] = j * 10; with (int j = 1; j < 10000; j++) ,
But that doesn't work. It still gives me an output of 10 11 12... How to make an array punch through a loop and give me
10 Press any key to continue...
100 Press any key to continue...
1000 Press any key to continue...
10000 Press any key to continue....
I'm thinking I must set the for loop to < 10000.1 or < 10001 to output the final value in the array.
C++ :: Multiplying Matrix Using Algorithm
Jun 3, 2013Trying to multiply to matrixes using the following algorithm,
Code:
ABrec(A,B)
n=A.rows; //n must be multiple of 2
C is a new n*n matrix.
if(n==1)
C[0][0]=A[0][0]*B[0][0];
[Code] ....
but the code doesn't work !!!
C++ :: Multiplying All Values Of Array
Nov 16, 2013I have an array as such and need to multiply all the values of it by each other and put that as a variable.
//for example
int array1[100]
//assume i have already input the values of each element properly up to, say, element 4
//I need to now multiply all of those values together. I think I need the size of the array to control what it multiplies (I know how to find size) ....
C/C++ :: Multiplying Two Member Of A Class?
May 1, 2014we have to make a Invoice class which has a function called computeInvoiceAmount() which multiplies the price and the quantitiy which are private member of the class.
double computeInvoiceAmount(){
return quantity * pricePerItem;
}
This is my function, but if i compile it i get the following error:
"Invoice.cpp:53:11: error: "quantity" was not declared in this scope" and "Invoice.cpp:53:22: error: "pricePerItem" was not declared in this scope"
I tried it with the get functions but i get the same error.
Full code is here: [URL]
C++ :: Multiplying Matrices And Arrays
May 14, 2012Two different matrices will be read from text files (input1.txt, input2.txt) and they will be stored in two dimensional arrays (matrix1, matrix2) and one dimensional arrays (array1, array2). Our aim is to obtain the matrix multiplication using two dimensional and one dimensional arrays.
You are asked to write the main and the following functions. The definitions of the functions are given in the skeleton code.
int read_file(ifstream& in_file, int &row, int &col, double *array, double **matrix)
int write_file(ofstream& out_file, int row, int col, double **matrix)
void print_matrix(double **matrix, int row, int col)
void print_array(double *array, int row, int col)
void multip(double **matrix1, double **matrix2, double **result, int k, int m, int n)
void multip_array(double *array1, double *array2, double *array_result, int k, int m, int n)
You are going to obtain the input and output files as command line arguments
input1.txt :
3 4
2 3 4 5
1 3 5 4
0 4 4 7
The first element in the first line represents the number of rows (3) and the second element represents the number of columns (4) of the matrix (the result file will have the same format).
likewise;
input2.txt :
4 5
1 2 3 4 5
2 9 43 44 21
32 32 32 43 54
1 3 3 4 5
thats my homework and here is the code i wrote from the sceleton code they gave me :
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int read_file(ifstream& in_file, int &row, int &col,/* double *array,*/ double **matrix)
[Code] ....
I didn't understand the array part but even when i exclude the array part i get the program has stopped working message. My os is windows7 ultimate with mingw installed and i compile the program using g++ command in cmd with the arguments input.txt input2.txt resultt.txt
C++ :: Multiplying Variables In Program The End Result Comes Up As Null
Jun 4, 2013So I have this program to calculate the types of meat, I have fixed the system errors but the actual program when I run it comes up with <null>
Code:
#include <stdio.h>
#include <stdlib.h>
#define beef 1 /* multiplication factor of beef*/
#define chicken 1.5 /*factor of chicken*/
[Code] .....
C++ :: Having Negative 0 As Result After Multiplying Zero With Negative Number
Aug 27, 2014Having error . I multiplied 0 by -4 and my result is -0 instead of 0. I tried to change the data type put It won't work. This is my code:
#include <iostream>
int main () {
double b, c;
std::cout<<"b: ";
std::cin>>b;
std::cout<<"c: ";
std::cin>>c;
std::cout<<b*c<<std::endl;
return 0;
}
C++ :: If Statement Multiplication By Zero
Mar 28, 2013I want to set an integer to zero when it easy equal to another integer, but it seems that the program for some reason won't set the integer to zero. Here is the example of that code:
#include <iostream>
using namespace std;
int main () {
int n = 2;
int r = 2;
if(n==r)
n++;
r*0;
cout << " n is " << n << endl;
cout << " r is " << r << endl;
}
What am I doing wrong, it should say that "n is 3" and "r is 0".
C++ :: Matrix Multiplication Using Pointers
Feb 15, 2014Code:
#include<stdio.h>
#include<conio.h>
void main()
[Code] .....
This program on running returns an error of "ILLEGAL USE OF POINTER".
C :: Multiplication Table In 2D Array
Dec 30, 2014I want to declare a 2D 4*4 array, and fills the array with the multiplication table of an integer x from the user, for example: x*1,x*2,x*3, ....., x*16 and how to pass that array to a function to print the array and to another function that swaps a column with another column chosen by the user.
View 3 Replies View RelatedC :: Matrix Multiplication Using Pointers
Feb 17, 2014Code:
#include<stdio.h> Code: #include<conio.h>
void main() {
int *a[2][2],*b[2][2],*c[2][2],i,j,k;
Printf("
ENTER a MATRIX ELEMENTS
[Code] .....
C :: Multiplication With Sort Function
Oct 30, 2014I need to include validation to only accept numbers and to only the last four odd numbers in the table.
Code:
#include <stdio.h>void main() {
int upper, range, i;
printf("Enter an integer to find multiplication table: ");
scanf("%d",&upper);
[Code].....
C++ :: How To Able To Overload A Multiplication Operator
Apr 24, 2014How would i be able to overload a multiplication operator that if, in the main example(0, 5, 0) * example (0, 5, 0) is given, it gives me 25?
View 1 Replies View RelatedC++ :: Multiplication Table Using Functions?
May 25, 2013 how to print a multiplication table of 2,3 ,4 or any table using functions in c++.. ?
Remember using "Functions" e.g Multiplication(int x)
{ }
int main{
then call the function}
C++ :: For Loop Multiplication - X Factorial
Oct 18, 2013int main() {
int x;
int y=1;
for(x=1 ; x<=12 ; x++ , y=y*x ) {
cout<<y<<'
';
}
}
This code give x! ( x factorial).
whenever ,in x<=12 , we change the 12 to any number n where n>=1 and n<=12
the code works and give the (x factorial)
for example 12!=479001600
the problem begins with the number 13.
when we put 13 like this x<=13 or for(x=1 ; x<=13 ; x++ , y=y*x )
the compiler gives a wrong result : it gives 1932053504 which is wrong because the true result is 6227020800
C++ :: Using Vectors For Manual Multiplication?
Jan 15, 2013I'm trying to solve Project Euler 16 where you have to calculate 2^1000. SO I made a program that would solve multiplying a number b a single digit factor through manual multiplication in a vector, just to test things out.
The problem is when I take things out of main and try to make a separate function, the original number is never multiplied.
Here's my code with functions...
/*Using vectors manually to multiply a number to a positive power.*/
#include <iostream>
#include <vector>
using namespace std;
void print_vector(const vector<int>& v);
[code]....
Here is the other code, not using functions but even if I use an extra for loop to multiply by the same factor several times, it still does the same thing.
/*Using vectors manually to multiply a number by two (or any single digit factor).*/
#include <iostream>
#include <vector>
using namespace std;
void print_vector(const vector<int>& v);
[code]....
C++ :: SSE Matrix Multiplication Error
Apr 25, 2014I have been using SSE/ SIMD Matrix multiplication approaches and I persistently get this error:
void mmul_sse_nsize(const float * a, const float * b, float * r, int size) {
__m128 a_line, b_line, r_line;
int bound = size*size;
int rows = size;
[Code] ....
The code almost never throws the error when matrices are size NxN, N =4.
Also, I have a 4 core laptop with 2 GB RAM and I am using VS2013.
C/C++ :: Multiplication Table - Formatting?
Mar 31, 2015I have to build a multiplication table in c++ and Im close but it still isnt formatted properly...
// multiplication table
#include <iostream>
using namespace std;
int main() {
int integer, range;
cout << "Input integer range :"; cin >> integer; cout;
cout << "Input range :"; cin >> range; cout << endl;
[Code] ....
C++ :: Multiplication Of Complex Numbers?
Apr 17, 2013I am trying to write a class that can multiply complex numbers but without overloading operators
View 1 Replies View RelatedC/C++ :: Matrix Multiplication Using Files
Dec 12, 2014I am trying to read two matrices from individual .txt file, and later trying to multiply them. But I am unable to succeed.
Here is the code.
#include<stdio.h>
#include<stdlib.h>
#include<stdbool.h>
// Here starts the main
int main()
{ // The two input values
FILE *inputFile1;
FILE *inputFile2;
[Code] .....
I am able to get only the first values as the output. The first matrix is 5x3, and the second one is a 3x3 matrix.
Matrix 1
1 2 3
4 5 6
7 8 9
10 11 12
Matrix 2
1 2 3
4 5 6
7 8 9
The output which I am getting is
Enter File name of matrix #1 - with extention - : matrix1.txt
Enter File name of matrix #2 - with extention - : matrix2.txt
Rows1 = 1 Cols1 = 2
Rows2 = 1
Cols2 = 2Cant multiply those two matrices
C++ :: Matrix Vector Multiplication
Jan 30, 2015I have Problem with matrix vector multiplication in program..
void matrixVector ( const int n, const double* A, const double* x, double* y ){
//for(int i = 0; i < n; i++){
// y[i*n] = 0.0;
// }
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
y[i*n] += A[i*n+j]*x[j*n];
[Code] ....