[matrix-multiplication] Forum Topics

I have a 10x10 matrix.basically this matrix is a square of 50 cm.and In this square we cut circles of diameter 5 cm each.The x and y co-ordinates are specified.I need to fill the martix depending on the circle it represents(with the help of given x and y co-ordinates). I …

for some reason when i run the program the print method for the array gets called instead of the one for the matrix..but it jus print out "array index out of bound".which is the exemption...the code is attached

hi ya all..im having trouble trying to code a matrix using a dynamicArray for my rows and columns..i get a problem calling the insert function from the dynamic array class because its not a base class for the matrix.just have a pointer of type dynamicArray...Can anyone help me call the …

when i compile i get an error message saying the following "51: error: assignment of read-only location" line 51 reads: c[i][j] = a[i][j] + b[i][j]; any help to get rid of this problem???[code]#include <iostream> #include <iomanip> using namespace std; #define N 3 void addMatrix(const double a[][N], const double b[][N], const …

Hi, I'm doing a matrix of array n I have to assign each column with a letter or number so that when I shuffle the letters/numbers, it will print out accordingly. this is like the transposition cipher. I have 2 problems. 1. my matrix is not printing out like i …

I have a slight problem, I have a dynamicSizeMatrix that has a member [CODE] ListAsLinkedList** theList; [/CODE] Now this ListAsLinkedList can be either DLL or SLL, now it all works fine but when I add elements like this: [CODE] DynamicSizeMatrix hello(ListAsDLL(),5); hello.addToList(0,2,new Integer(10)); hello.addToList(1,4,new Integer(6)); hello.addToList(2,6,new Integer(8)); hello.addToList(3,8,new Integer(7)); hello.addToList(4,10,new …

Need to make a random size (x = rows, y = columns) matrix which is filled with random numbers (only 0 or 1). So, if I don't know the size of the matrix, I use dynamic array. So far I have made this far, but obviously it isn't quite correct... …

Hello. I am currently working on a school project. I need to implement 4x4 matrix multiplication with multi-threads (pthread) doing each multiplication. By studying the assignment description and other codes found online, I was able to get a general idea of what I need to do. However, I am having …

Hello. I am currently working on a school project. I need to implement 4x4 matrix multiplication with multi-threads (pthread) doing each multiplication. By studying the assignment description and other codes found online, I was able to get a general idea of what I need to do. However, I am having …

How to write a programmes to determine the inverse of a given matrix?

Hello, In my program I have clipping planes setup for 60 degree field of view. I understand that near plane is in front of the camera and the far plane is further away from the camera. I would like to have a large field of view, let' say more than …

Well I'm relatively new to the forums and to C++. I'd like to overload + and = to add two matrices by being able to use Z=X+Y format. Header file: [CODE] #ifndef HOMEWORK1_H #define HOMEWORK1_H class Matrix{ public: double **element; Matrix(int=3,int=3); ~Matrix(); double getelement(int,int); void setelement(int, int,double); Matrix & operator+(const …

please help for this code. if anyone have it please send me. thanks

it keeps on saying '{' token error. did I put something wrong that the program keeps on saying '{' token error? [code] #include <stdio.h> #include <math.h> int Calendar(int daycode,int year,int leapyear); void dec_bin(int bin) { int x, y; x = y = 0; for(y = 7; y >= 0; y--) …

Can anyone help me to get the program code for printing the transpose of a matrix as output......pls help as soon as possible......

I want to find the product of two matrix using a function without using for loop? Help is really appreciated.

Hi, I am thinking about something that I heard in a discussion and I am not sure whether it is really like that or not. Calculating a shortest path on a graph can be done either using dijkstra's algorithm , basically DFS or by BFS. There might be some other …

I have the follow code: In this code i want initialized an object of cube! but when i did this, I initialized an array of matrix_type and in each object of the array matrix_type i initialized an object of array_type! BUT, if i try this with a matrix and with …

Hi - I have a question and I know the answer too but don;t know how to explain my answer - can someone help me in explaining. Consider the two-dimensional array A: int A[][] = new int[100][100]; where A[0][0] is at location 500 in a paged memory system with pages …

just see it...

Dear entourage Here is a solution that read two matrix of complex numbers ( including imaginary an real ) and add and multiply these together. I wrote it by Borland 5.02 . Do joy !!!

Simple code for matrix with pascal. --Jery--

This program calculates the determinant of a square matrix of any order using a recursive function. Uses a square matrix struct and related functions.

ei guys i really need help on how to give an output like this: -1 -1 -1 -1 -1 0 -1 -1 -1 -1 0 1 -1 -1 -1 0 1 1 -1 -1 0 1 1 1 -1 0 1 1 1 1 0 1 1 1 1 1 …

I 'm making a game in C++ and I need some help, I want to display a bmp image. I want to read a a bmp file and save the color ids in a matrix. Could you please help me. :)

Hi everyone!! I have a scientific C++ program which requires a good speed to run.(the program runs a lot of matrix and vector operations) For doing that, I come across following options on the net: 1. Use of turbo C++ 2. Use of Linux instead of window XP My current …

Hi I want to have a n*n matrix is there sombody to help me?? how i can write it??

[code=splusplus]#include<iostream> #include<iomanip> using namespace std; int main() { int a[10][10],b[10][10],c[10][10],i,j,k,r1,r2,c1,c2; cout<<"Enter the order of I matrix\n"; cin>>r1>>c1; cout<<"Enter the order of II matrix\n"; cin>>r2>>c2; cout<<"Enter the "<<r1*c1<<" elements for I matrix \n"; for(i=0;i<r1;++i) for(j=0;j<c1;++j) cin>>a[i][j]; cout<<"Enter the "<<r2*c2<<" elements for II matrix \n"; for(i=0;i<r2;++i) for(j=0;j<c2;++j) cin>>b[i][j]; for(i=0;i<r1;++i) for(j=0;j<c2;++j) { c[i][j]=0; …

Hey, i was trying to make a multiplication word problem type thing and when hit debug it always says what my title is. Here's my code. [code] #include <iostream> void main(); { // Declare Variables!!! char name[15]; short quantity; float amount; float totalSale; cout << "Enter Customer's Name: "; cin.getline(name,15); …

Hi, I want to design a two dimensional matrix C++ class of myself. In prospect this class should implement such functions: 1. It should be able to be initialized by a binary data file(a .raw file without any header or format infomation.) with the file name as an argument of …

I'm just starting python and it seemed reasonable to go ahead and learn the new version. I read that numpy wont be available for python3 until at least 2010. All I need is a basic "vector", "matrix", and some basic functions like matrix/vector multiplication. Is anything like this available for …

I am creating a matrix math library which I would like to give the user access an element in the NxM 2D array, that was allocated in the constructor. I've been reading that you can't overload the [][]. How would I be able to overload this overload this operator so …

Please can anyone tell me why that program crashes when I enter the first matrix? [CODE]#include<iostream> #include <stdlib.h> #include <windows.h> using namespace std; void menu() { cout<<" \t\t\t\t*-*-UNIATIVE Matrix calculator-*-*\t\t\t\t "<<"\n"; cout<<" "<<(char)1<<" NNNN MMMM AAAA "<<(char)1<<" "<<"\n"; system ("color 08"); _sleep(1000); cout<<" \t\t\t *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-\t\t\t"<<"\n"; cout<<"Ahlan washlan ya user Ya …

hello, iam very beginer in c++ and i have home work in matrices i want to know a method to make matrices and collect them by using array & pointer note i want to make a matrix code which make me type any matrices with any number of row or …

[CODE]int C[10][20]; int * mmatrix (int A[ 10 ][ 5 ], int B[ 5 ][ 20 ]) { int i, j, k; for(i = 0; i < 10; ++i) for(j = 0; j < 20; ++j) { for(k = 0; k < 5; ++k) C[ i ][ j ] += …

Write a function that takes as an argument a two-dimensional array with 9 lines and 9 columns (with integer elements), and verifies if the matrix contains a valid Sudoku solution.

Create a list of lists to store 3by3 matrix data like 3 5 6 7 8 30 9 6 20 Write a program which consumes this list and returns the list which has the transposed data like 3 7 9 5 8 6 6 30 20 pls help

Hi everyone This should be one of our last assignments. Well, not sure, but most probably. As the title implies, we're supposed to write a program using multi-dimensional arrays for a 6x6 matrix multiplication. Here's what I've done. It's almost OK; except the most important part which is the final …

I'm very new to python, so this is very basic. I'm using the same basis i used on an add row program, which is probably why it comes up adding a row. When i read it back to myself, it seems to make sense. Thanks in advance for any help. …

in my problem i have to enter the components of matrix in 2D array i.e input: 1 5 6 3 9 10 8 23 15 output: 1 3 5 6 8 9 0 15 23

Please help me to solv this program known circular matrix input=3 output like 1 2 3 8 9 4 7 6 5

Ok, I'm not too sure if this would be considered a matrix, but what I'm trying to do promts the user for 2 characters, and one integer. For example, say you key in * G 3 the cout would be... *G* G*G *G* If you keyed in % $ 5 …

How do I find the Parity Check Matrix, when I’m given the generator matrix? e.g. | 1 0 0 1 1 | G = | 0 1 0 1 2 | | 0 0 1 1 3 | Can anybody teach me how to find the Parity Check Matrix or …

plz help me to add two matrices using pointers..

I am trying (unsuccessfully!) to code the game of life for an assignment, I am very new to C programming and am finding it very difficult. I am at the part where the program needs to count how many cells are live/dead and I thought it would be a good …

could anyone help me with the code to extract a matrix from a file? i would also need to be able to know the dimensions of the matrix i am extracting. thanks in advance

here i have 2 files and im getting a wrong echlon form of the matrix...please help; Linear_Equation.java: package mypack; import java.io.*; public class Linear_Equation{ public static void main(String args[])throws IOException{ int i,j; matrix mat1=new matrix(); int mtx[][]=new int[3][4]; mat1.accept(); mat1.display(); mtx=mat1.echolonform(); System.out.println("\nThe answer is:"); for(i=0;i<3;i++) { System.out.println("\n"); for(j=0;j<4;j++) System.out.print(" "+ …

hello, dear all. below is my program code. the problem is an half of my output is zero for entries of matrix for n greater than 4. [code=cplusplus] #include <stdio.h> #include <stdlib.h> #include <iostream> #define MAX 100 int num[MAX][MAX]; int n; int nrows = 0; using namespace std; void print(int …

Hi! I wrote two functions in order to access two private data members of a template class and I got the messages in the title every time I call these functions(getNcols(), getNrows()). I'd be very grateful for your help, guys... (Without the "template<class T>" before the friends, I got linker …

/* MATRIX ADDITION */ #include<stdio.h> #include<conio.h> #define MAX 100 struct Matrix { int Element[MAX][MAX]; int No_of_Rows; int No_of_Cols; }; void MatrixAdd(const struct Matrix *,const struct Matrix *,struct Matrix *); int i,j; void main() { int p,q; struct Matrix Mat1; struct Matrix Mat2; struct Matrix res; clrscr(); printf("\nEnter size of the …