291 Topics
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| | # Can someone help me with this program by fixing it I should finish it before tomarrow and I don't know where I went wrong# #include<stdio.h> //header file #include<conio.h> //header file #include<stdlib.h> //header file #include<time.h> //header file #include<math.h> //header file #define PI 3.14159 //header file indicating that pie is equal …  |
| | # I HAVE DONE ABOUT EVERY THING AND I CANNOT SEEM TO SEE WHERE I WENT WRONG CAN SOMEONE PLEASE TELL ME WHAT I DID WRONG I NEED TO DONE THIS BY TOMARROW ASAP!!!!!!# #include<stdio.h> //header file #include<conio.h> //header file #include<stdlib.h> //header file #include<time.h> //header file #include<math.h> //header file #define …  |
| | # I have tried about a million times to fix the error but still no result and I need to fix this before tomarrow can someone help by showing me what to do the compiler shows that the error is at the curly braces after void triangle(int a, int b, … |
| | How to add two sparse matrices stored in 2d arrays?? |
| | basically what ive got going is some transformations using my own functions, ive got them working fine still using glMultMatrix but im not allowed to use that for this. im trying to make my own matrix multiplication function and im getting stuck somewhere. the matricies are all one dimensional arrays … |
| | Hola code gurus, I’m wondering if there’s a way to use a string to access a specific item in a matrix of int[X]. I have a program which uses enums as iterators to reference a large amount of data. To select an item in the matrix, the user will enter … |
| | Hey guys! I have an encryption project for school and i have to randomly generate a 3x3 matrix. I know how to assign the values to the 2d array but i am unsure how to return the array. I know it is possible to return a vector of a vector …  |
| | /***** The prompt i have is : use a class with 3 member functions named InputMatrix, Calculate, and OutMatrix. The program will prompt the user to (e)enter the matrix data, (c) to calculate the matrix multiplication, (d) to display the input and output matrices, and (q) to quit. no exit() …  |
 | hi Am trying to write a C-code that multiply two matrices but i want the elemnets of every matrix is random number using time function main() { srand ( time(NULL) ); int m1[10][10]; m1[10][10] = rand() % 10; scanf("%d%d",&r1,&c1); scanf("%d%d",&r2,&c2); if(r2==c1) { . . . . } this is the … |
| | This is my matrix. I want to solve C,D and E <uploaded> Can anyone give me the sample codes to solve C, D and E in VB.Net? Answers are C=0.4857143, D=0.0000000 and E=-0.1428571 (manual calculation) Thanks! |
 | Hello, I have a major problem with a Correlation algorithm I'm trying to implement.. Basically, when I have two small matices: Matrix 1: 0 1 0 1 1 1 1 1 1 1 1 1 0 1 0 0 0 1 1 1 0 0 0 0 1 1 1 … |
| | [CODE] // a code to produce matrix style affect #include "stdafx.h" #include<iostream> using namespace std; int modulus(int Number, int number); char getchar(int lowerlimit, char a, int upperlimit); int modulus(int Number, int number) { int q=Number/number; return Number-(q*number); } char getchar(int lowerlimit, char a, int upperlimit) { return (a+modulus(lowerlimit,upperlimit)); } int … |
| | [CODE] // a code to produce matrix style affect #include "stdafx.h" #include<iostream> using namespace std; int modulus(int Number, int number); char getchar(int lowerlimit, char a, int upperlimit); int modulus(int Number, int number) { int q=Number/number; return Number-(q*number); } char getchar(int lowerlimit, char a, int upperlimit) { return (a+modulus(lowerlimit,upperlimit)); } int … |
| | So I have a matrix class that must run on a unix/linux server. The main is a test file that is provided by the instructor. When I compile my code in visual studio it works fine except for test 8 because I can't figure out how to return a print … |
| | the top most left (corner) is the starting point. then it will travel. the gray areas are the traveled areas. In this 2 dimensional array how will i measure the diagonality of these traveled paths? |
| | hi guys, I have been using python since last 1yr. For my work I have to use large data that are at least of size 3000 to 30000 or even more quite a time. Since many months I have been using matrices. But when the size of the Matrix is … |
| | Is there something wrong with this code i wrote? i get the feeling i made a mistake and cant quite recall what, its quite frustrating. The function is supposed to determine the dimensions of a matrix and if it is, or is not, a valid matrix ( for example, if … |
 | I am learning java through a book. After finishing each chapter, i work out problems given at end of each chapter . when i tried to solve a problem , i could not frame the logic exactly. Please help to solve following exercise : Write a program to find the …  |
 | Here i have a working code, what i want to know is: When the user inputs elements to the array, i want it to be automatically aligned in form of an matrix. Instead of [ICODE] 1 2 3 4 5 6 etc....[/ICODE] But just as a matrix, like this [ICODE] … |
| | Hello! I'm trying to write a program that will eventually carry out matrix multiplication (by another matrix and by a vector) among a few other methods for a homework assignment. However, the assignment says we first need to write a default constructor that creates the 3x3 Identity Matrix. I'm not …  |
| | I have a GDI component I use for creating graphical objects on my form. This component contains a Transformation_Matrix class. When I populate these matrix objects I have the ability to multiply them together to obtain a new transformation matrix. E.g. Transformation_Matrix matrix1, matrix2, matrix3 ... do stuff to populate …  |
| | Matrix given in memory; the objective is to print the spiral in opposite direction from clockwise (left column down the right lower range, right up column, a series of upper left, etc. until you get to the environment). This works just for dimension 3x3. It should works for MxN dimension, … |
| | I have question about if my input matrix was | 1 2 3 4 | | 2 3 4 5 | | 3 4 5 6 | how I would get an output matrix | 0 0 0 0 0 0 | | 0 1 2 3 4 0 | … |
| | I made a code in assembly 8086. I load matrix (array) in memory with dimension 3x3. but this code works just for this dimension of matrix 3x3. Could someone give me an idea how could i make it to work with dimension m x n? the array is loaded in … |
 | Hello, I have a file and this how it looks like: 6 {a, b, c, d, e, f} 1 1 1 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 1 1 1 1 0 1 1 … |
| | Matrix given in memory to print the spiral in opposite direction from clockwise (left column down the right lower range, right up column, a series of upper left, etc. until you get to the middle) This is matrix 1 2 3 8 9 4 7 6 5 and the result … |
| | I have a Graph that I'm making using an adjacency matrix to hold edge values. The noEdge value is zero and all edgeweights are positive integers. I have to delete a node from this graph and I'm having trouble figuring out how to update the Adjacency matrix after the deletion … |
| | Hello, I want to use Hamming Code to correct any BER's that I have streaming from a text file. The contents of my text file are as follows: 0 0 1 0 1 1 0 0 0 1 0 1 1 1 1 1 1 0 0 0 0 1 … |
| | Hello people I have a 2 dimension array that contains only 0 and 1 values. I want to represent all the 0 elements in a tree: how can I do that ? Thank you for any help |
| | Write a program that creates a two dimension matrix of size N x N (N is larger than 4). Through a menu, the user can choose to perform the following operation to the matrix. 1 - Rotate the matrix around the diagonal (function name rotateDiagonal) Example for 3 x 3 …  |
| | Write a program which for a square matrix to calculate the sum of the elements. Assume that the amount can be placed in 16-bit register Example: 1 [COLOR="Red"]1 1[/COLOR] 2 2 [COLOR="Red"]2[/COLOR] 3 3 3 Elements are: 1,1, 2, which are with red color. I had calculate sum of this …  |
| | Ey all. Im folowing a c++ course and im stuck writing string or char arrays to matrices. The problem is i have a matrix of size [i][j] with random values from 0 to 3. Each of these values have to correspond to either a string or char array. 0=EMPTY 1=RES … |
| | A console application to multiply two matrix of float numbers and print result on console. Some memory checks are done as it is allocating memory dynamicaly. May give error and exit when short of memory. |
| | Hi everyone! In class we just learned about pointers and the their uses. We have been given a project where we need to allocate dynamic memory for any number of matrices (up to four). All four of the matrices addresses are stored in a matrix poiner. All of this must … |
 | Hello all, I have an issue with a class I am writing which is supposed to be able to multiple 2 matrices together. The issue I am having is not the actual multiplication (That bit works, thanks for the pointers yesterday). The problem, or so I assume, is with my …  |
| | [COLOR="gray"][/COLOR]1. your-netid_hw5_1.java : Liang page 253, programming exercise 7.6. (Multiplying two matrices) Write a method to multiply two matrices. The header of the method is as follows: public static double[][] multiplyMatrix(double[][] a, double[][] b) To multiply matrix a by matrix b, the number of columns in a must be the …  |
| | I'm trying to store these arrays into the matrix [CODE]double X[5][3][/CODE] so I could classify them with 1 Nearest Neighbour: [CODE=C]double brick_v[3]={ent_brick,en_brick,con_brick}; double metal_v[3]={ent_metal,en_metal,con_metal}; double skin_v[3]={ent_skin,en_skin,con_skin}; double wood_v[3]={ent_wood,en_wood,con_wood}; double grass_v[3]={ent_grass,en_grass,con_grass};[/CODE] I would be very grateful if someone would show me how you can do this in C++. |
| | When i run this program it takes more values and prints less values.... this runs on Dev C++([url]www.bloodshed.net[/url]) [CODE]#include<iostream> using namespace std; #include<conio.h> int main() { int arr[5][5],i,j,k,l; cout<<"Enter matrix row wise"; for(i=0;i<=3;i++) { for(j=0;j<3;j++) { cin>>arr[i][j]; } } for(k=0;k<3;k++) { for(l=0;l<3;l++) { cout<<" "<<arr[k][l]; } printf("\n"); } getch(); } … |
| | I've made a library for Delphi to work with matrices. Everything in the library works perfectly as intended save the Matrix Inversion Procedure. I've used the Gauss-Jordan method of Matrix Inversion & everything works excellent for square matrices upto 7x7. From 8x8 onwards, I get a 'Invalid Floating Point' Error … |
| | Hey everyone. I have a matrix of matricies. Basically, I have a 3 dimensional matrix object which stores i 2-d arrays. For example: M=(i,j,k) A= M[1,:,:] = (j, k) B= M[2, :, :] = (j', k') etc.. Now, what is want to do is actually do the entire product (A*B*C...); … |
| | Hello, I am wondering if there is an efficient way (other than for cycle) of solving following task: I need to multiply e.g. two matrices and at every point in the matrix there is an array. The two matrices shall be multiplied using matrix multiplication and when the elements of …  |
| | hi everyoen i've a matrix array with some value, i want to shaw each of them in matrix type in my form, how can i do it? can i use DataGrid view for this? and if yes ... what is method..  |
| | Can some one suggest best way to calculate the huge matrix. Example: [CODE] const int NUMPAT = 1212; const int NUMIN = 6; const int NUMHID1= 13; const int NUMHID2 =15; const int NUMOUT = 12; #define rando() ((double)rand()/(RAND_MAX+1)) [/CODE] Below are----- [CODE] double Input[NUMPAT+1][NUMIN+1]; double Target[NUMPAT+1][NUMOUT+1]; double SumH1[NUMPAT+1][NUMHID1+1], WeightIH1[NUMIN+1][NUMHID1+1], … |
| | guys, we use like a 2-d array very often. But what exactly is the use of a 2-d array ? Now when i look at it, i feel everything can be done using a 1-d array and incrementing the pointer appropriately. Is the only advantage of a 2-d array , … |
| | Hello all, I am currently a student doing an end-of-year software project - and I need some help. I am currently trying to return a 2D array from a function contained in a header file. The function is called from the main() and asks the user to input the location … |
 | I posted a code snippet ([URL="http://www.daniweb.com/software-development/csharp/code/355645"]Optimizing Matrix Multiplication[/URL]) and when I check the stats on it and click the [URL="http://www.daniweb.com/forums/linkbacks.php?t=355645"]linkbacks[/URL] I get a page of "Incompatible Browser | Facebook" links. What's up with that?! |
| | Hi all, I have a programming assignment to store sparse matrices using a list<list <myclass> >. I have pretty much everything nailed down but I'm going wrong at some point, the output is incorrect. Instead of giving me 4 lines with the column position and value of non zero values … |
| | I have a problem on programming, its not really my assignment, but my friends... i just thought i can resolve this at C, because i got some backgrounds on it.. but i can't do it my compiler is dev c++ the code must be on C++ not C can i … |
| | So i have a matrix. (n rows, m cols), and my program has to count the number of rows, where all the cols were >0. For eg. there are n cities, and m bird species. The program has to count the number of cities, where all the bird species (m) …  |
| | Hey all, I'm currently working on a project that exemplifies matrix multiplication algorithms. My problem isn't working on the algorithms, but more of the structure of the classes. If any of you wouldn't mind looking over my code and helping me get a little more familiar with how things should … |
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